Every term, defined plainly.

A/B testing is comparing two versions of a page or element with live traffic split between them to see which performs better.

A+ Content is Amazon’s enhanced description modules, letting a brand look like a brand inside someone else’s store.

AARRR splits growth into five measurable stages, the diagnosis discipline that finds where a store actually leaks.

An abandoned cart email is the reminder that restores a walked-away cart, the cheapest revenue in email.

An about page answers who the shopper is buying from, the page where unfamiliar stores get vetted.

Above the fold is the part of a page visible before scrolling, the first screenful that decides whether visitors keep going.

Accessibility is building the store so shoppers with disabilities can browse, choose, and check out without barriers.

Account takeover is criminals logging into real customer accounts with stolen credentials, at bot scale.

The ad auction is the split-second contest behind every impression, won on bid times predicted quality.

Ad fatigue is an audience wearing out on a creative, every winning ad dying from the day it scales.

An ad library is the platforms’ public archive of running ads, the cheapest research in performance marketing.

ADA compliance is meeting US accessibility law as applied to websites, with WCAG as the working benchmark.

Add-to-cart rate is the share of sessions or product views where a shopper adds an item to the cart.

Advantage+ shopping is Meta’s automation-first ecommerce campaign, where the buyer’s job moved to inputs and verdicts.

An advertorial is an ad in an article’s clothes, the warm-up act between the click and the product page.

Affiliate marketing pays partners a commission for the sales their tracked links and codes send to the store.

Age verification confirms a shopper is old enough for restricted products, from database checks to ID verification.

Agent traffic is the visitors that aren’t people, where the serve-or-block call became a revenue decision.

Agentic commerce is delegated buying: AI agents researching, choosing, and transacting while humans approve outcomes.

Agentic payments are money moved by software under scoped consent, the fastest-hardening layer of the agent stack.

An aggregate rating is the combined score of all reviews for a product or business, usually shown as an average out of five stars with a review count.

An AI agent pursues a goal with tools and autonomy, the difference between asking about a product and having it bought.

An AI customer service agent has permission to act, resolving orders end to end instead of deflecting to articles.

An AI product description is generative-AI-drafted product copy at catalog scale, grounded in attributes and reviewed by tier.

AI review summaries are the machine-written digest of the whole corpus, the crowd’s opinion pre-read for every shopper.

An AI shopping assistant helps people choose and buy conversationally, making machine-readable credibility the new page one.

AI-generated reviews are machine-written fakes at collapsed cost, fought with provenance rather than prose analysis.

AIDA is persuasion’s oldest sequence, surviving as page anatomy and the diagnostic for which letter drops people.

An alternatives page harvests switch-intent searches, defining the consideration set for buyers leaving a rival.

An ambassador program is organized advocacy: real customers equipped and rewarded to represent the brand sustainably.

An announcement bar is the store’s standing headline, persistent where popups interrupt.

AR try-on previews products on the shopper or in their space through the camera, answering fit doubts before purchase.

Assortment planning decides what the store carries, balancing the catalog like the portfolio it is.

Astroturfing is manufactured opinion dressed as grassroots, the poison in the well social proof drinks from.

Attach rate is how often the companion item rides along with the primary sale, the accessory engine’s gauge.

Attribution is deciding which marketing touches get credit for a sale, and it decides where budgets flow.

An attribution window is how long an ad interaction gets credit, the quiet reason platform numbers disagree.

Average order value (AOV) is the average amount a customer spends per order, calculated by dividing total revenue by the number of orders over a period.

Average selling price is what a unit actually sells for after discounts, the confession behind the list price.

B2B ecommerce is businesses buying from businesses online, with account pricing, bulk orders, and terms built in.

A back-in-stock alert notifies interested shoppers when a sold-out product becomes available again.

A backorder sells what’s temporarily gone, capturing demand a stockout would lose on the strength of an honest date.

A barcode is a scannable product identifier, from retail GTINs to internal SKU codes driving warehouse scans.

Basket size is how much one order carries, and the second item in the box is nearly pure contribution.

Best Seller Rank is Amazon’s sales-velocity scoreboard, the market’s pulse made public per category.

BFCM is the Black Friday to Cyber Monday stretch, ecommerce’s biggest discount weekend and a season of its own.

A bid strategy is the instruction given to the auction, the account’s economics translated into machine orders.

BOPIS (buy online, pick up in store) lets shoppers order and pay online, then collect the order at a physical location.

Bot traffic is automated visits from crawlers to scalpers, polluting analytics, ads, and inventory when unmanaged.

Bounce rate is the share of sessions that end after a single page view, with no click deeper into the site and no purchase.

Brand awareness is how readily people recognize a brand, recall what it sells, and think of it when the need arises.

Brand bidding is paying for name queries, yours in defense or a rival’s in conquest, priced by incrementality.

A brand collaboration is two brands making something together, audience exchange with a story attached.

A brand community is customers gathered as members, the moat made of relationships rather than features.

Brand equity is the commercial value of being known and preferred, the asset that makes everything else cheaper.

Brand lift is the change in minds a campaign causes, measured by surveying exposed audiences against control.

Brand loyalty is being chosen again when alternatives are one tap away, preference rather than habit in disguise.

A brand registry is a marketplace program giving trademark holders listing control and counterfeit-fighting tools.

Brand voice is how a brand sounds in words, consistent enough across touchpoints to recognize without the logo.

Branded resale is the brand operating its own secondhand channel, the resale market brought in-house.

Breadcrumb navigation is the linked trail showing where a page sits in the site hierarchy, like Home / Category / Product.

Brick-and-mortar is physical retail, the channel that changed jobs rather than dying.

Browse abandonment is when a shopper views products but leaves without adding anything to the cart.

The Buy Box is the featured offer winning the default add-to-cart when sellers compete on one listing.

Buy now, pay later (BNPL) lets shoppers split a purchase into installments while the store is paid up front by the provider.

A buying guide walks shoppers through choosing in a category, from criteria to specific recommendations.

C2C is commerce between shoppers, the model powering resale, run on platform-built trust rails.

A call to action is the ask made clickable, the single sentence the whole page exists to earn.

A cancellation flow is the exit designed on purpose, where reasons are learned and pauses beat goodbyes.

Carbon-neutral shipping measures delivery emissions and offsets or reduces them to net zero, with claim quality varying by offset.

Card testing is fraudsters validating stolen cards on your checkout in small bursts, at your cost.

Carrier-calculated shipping quotes live carrier rates at checkout from the order’s real weight, size, and destination.

Cart abandonment is when a shopper adds one or more items to their cart but leaves the site before completing the purchase.

A case study is proof with a plot: a customer’s full story letting prospects rehearse their own success.

Cash on delivery is payment at the doorstep, the trust bridge that built emerging-market ecommerce, with teeth.

Cashback returns a slice of the purchase after the sale, discounting without touching the sticker price.

A category page shows one part of the catalog as a browsable grid, the store’s aisle and search landing page at once.

Category page SEO ranks collections for commercial head terms, the store’s designated athlete for its biggest keywords.

Cause marketing ties purchases to giving, differentiating on shared values when the giving is real and transparent.

CCPA is California’s privacy law giving residents rights to know, delete, and opt out of the sale of their data.

Channel conflict is your routes to market fighting each other, reach purchased with friction that compounds quietly.

A chargeback is a payment reversal initiated through the customer’s bank rather than a refund requested from the store.

Charm pricing ends prices just below a round number, like $9.99, so the lower left digit makes the price feel smaller.

A chatbot is automated conversation on the store, answering common questions and routing to humans when needed.

Checkout optimization is the practice of removing friction from the checkout flow so more started checkouts end in completed orders.

Choice overload is abundance backfiring, engaged shoppers who face forty options and leave with none.

Churn rate is the percentage of customers lost over a period, the counterpart of retention.

Circular commerce keeps products in use through resale, trade-ins, refurbishment, and repair built into the business.

Click fraud is fake clicks burning ad budgets and mis-teaching the algorithms spending them.

Click-through rate (CTR) is the percentage of people who click after seeing a link, ad, or listing: clicks divided by impressions.

Clienteling is data-powered personal retail: associates advising known customers by name, in store and between visits.

Cohort analysis groups customers by shared starting point and tracks each group’s retention and spend over time.

A comparison page targets the X-vs-Y decision, the highest-intent search a brand can capture or surrender.

Competitive intelligence is the systematic study of rivals, replacing anecdote with a shared current picture.

Composable commerce builds the store from swappable API-connected services instead of one platform doing everything.

A content calendar is publishing planned in time, converting strategy into scheduled work the team can see.

Content marketing earns customers by being useful before the sale, through guides, answers, and comparisons that build trust.

Contract manufacturing is your product made in someone else’s factory, the relationship the contract must own.

Contribution margin is what a sale leaves after all variable costs, the honest per-order number scaling runs on.

Conversational commerce is selling inside messaging: questions, guidance, and checkout in the thread.

Conversion copywriting is writing engineered for the yes, built from the customer’s own words and measured by action.

Conversion rate is the percentage of visitors who complete a desired action, most often a purchase, calculated by dividing conversions by total visits.

Conversion rate optimization (CRO) is the systematic practice of increasing the share of visitors who buy, using research, testing, and iteration.

Conversion tracking ties purchases and signups back to the marketing that drove them, feeding both reports and ad algorithms.

Cookie consent is the visitor’s permission for a site to use non-essential cookies, collected through a consent banner.

Counterfeit protection defends a brand against fakes through registration, monitoring, takedowns, and authentication.

A coupon site aggregates discount codes and earns affiliate commission on the checkout detours it captures.

CPA is the platform-level price of one conversion, the number the machines optimize and buyers negotiate with.

CPC is the auction price of one visit from an ad, the bridge between media cost and site economics.

CPL is the price of a captured contact rather than a customer, the metric of ecommerce’s lead-led funnels.

CPM is the price of a thousand impressions, the base currency every downstream ad metric is built on.

A creative brief is the one-page contract before the work, the strategic thinking done once in writing.

A creative strategist decides what the ads should say before anyone makes them, the layer between data and production.

Creative testing finds winning ads on purpose, the pipeline that became the targeting.

A creator brand builds the product on an existing audience, inverting D2C’s sequence and deleting launch CAC.

Crisis communication is what the brand says when things go wrong publicly, the response being what’s remembered.

A CRM is the customer database with actions attached, where history with each person accumulates into leverage.

Cross-border ecommerce is selling internationally, from home-shipped orders to localized in-market operations.

A cross-sell is an offer of a related product alongside the one being purchased, like a case offered with a phone.

Crowdfunding launches by preselling to a crowd, capital and validation raised in the same campaign.

Curbside pickup brings an online order to the customer’s car, the fastest form of local pickup.

Customer acquisition cost (CAC) is the total sales and marketing spend divided by the number of new customers it produced.

Customer advocacy is customers promoting the brand unpaid, the credibility advertising can’t buy.

A customer data platform unifies fragmented customer data into one profile per person, synced to every tool.

Customer feedback is everything customers tell a business about their experience, from reviews and surveys to support conversations.

A customer interview is a structured conversation surfacing the why behind the metrics, in the buyer’s own words.

The customer journey is the full sequence of experiences a person has with a brand, from first exposure through purchase and beyond.

Customer lifetime value (CLV or LTV) is the total revenue a business can expect from a single customer across the whole relationship, not just their first order.

A customer persona is a data-drawn composite of a key customer type: their goals, objections, and buying habits.

Customer retention is a business’s ability to keep customers buying over time instead of losing them after the first order.

Customer satisfaction score (CSAT) measures satisfaction with a specific experience through a short, single-question survey.

A customer testimonial is a statement from a real customer endorsing a product or brand, usually curated and displayed by the business itself.

Customer trust is the belief that lets a stranger pay first, built from competence, integrity, and benevolence.

Customs duty is the border tax on imported goods, set by product classification, value, and origin.

A cycle count verifies inventory continuously in daily slices, catching record drift without stopping operations.

A dark pattern is interface design that tricks or pressures shoppers, converting today and corroding trust after.

Dark social is sharing analytics can’t see, the private recommendations arriving in reports as unexplained direct.

A dark store is a shop with no shoppers, retail space converted into the fulfillment node that makes minutes-fast delivery possible.

De minimis is the customs-free doorway low-value imports shipped through, and the rulebook is moving.

Dead stock is inventory that has stopped selling, frozen capital aging toward worthless while occupying space.

A delivery exception is the carrier flagging a transit problem, from address issues to weather and customs holds.

Demand forecasting predicts what will sell and when, giving inventory decisions a number to aim at.

A digital product passport is a per-product digital record of composition, origin, and repair data, moving from concept to EU mandate.

Digital products are goods with no box, near-zero marginal cost, instant delivery, and their own strange rules.

A digital wallet stores payment details on a device or account and pays at checkout with a tap, using secure tokens instead of typed card numbers.

Dimensional weight bills a package by its volume when that exceeds its actual weight, pricing space over heft.

Direct mail is the marketing channel with a stamp, rediscovered as the uncrowded route to digitally fatigued customers.

Direct response marketing is advertising built to cause a trackable action now, performance marketing’s ancestor and rulebook.

Direct-to-consumer (D2C) is a brand selling straight to buyers through its own channels instead of through retailers.

Discontinued product SEO is the exit plan for retiring URLs, inheriting equity instead of burying it in 404s.

A discount code is a string a shopper enters at checkout to get money off, such as a percentage, fixed amount, or free shipping.

Distinctive brand assets are the sensory signatures a brand owns in memory, recognition compounding with consistency.

A DNVB is a digitally born brand owning its whole stack, the model that wrote modern D2C’s lessons.

A drip campaign is a pre-written email sequence delivered on a schedule or triggered by each subscriber’s behavior.

Dropshipping is selling products a third-party supplier ships directly to the customer, so the store never holds inventory.

Dunning is the failed-payment recovery process of retries, notices, and card updates that saves involuntary churn.

Dynamic pricing changes prices automatically based on demand, inventory, competition, and other conditions.

Dynamic product ads assemble themselves from the catalog per viewer, making feed quality the new ad quality.

Earned media is attention gained rather than bought, the credibility that comes from independence.

An ecommerce aggregator buys and rolls up online brands, the exit market that boomed, corrected, and taught.

An ecommerce platform is the system a store runs on, the stack’s least reversible choice.

Ecommerce SEO ranks the store for searches that end in purchases, architecture and page types over articles.

EDI is the standardized machine-to-machine exchange of business documents like purchase orders and shipping notices.

Email authentication proves mail is really from you via SPF, DKIM, and DMARC, now required by major mailbox providers.

Email deliverability is whether sent email reaches inboxes instead of spam, the silent gate under every email metric.

Email marketing is selling and relationship-building through scheduled campaigns and automated flows triggered by shopper behavior.

Employee-generated content is the team on camera, authenticity arbitrage the brand actually owns.

Endless aisle lets in-store shoppers order the full catalog beyond the shelf, converting walkouts into sales.

Engagement rate is the share of sessions where visitors stayed, explored, or converted, the positive mirror of bounce rate.

An ERP is the company-wide system tying inventory, purchasing, orders, and accounting to one shared record.

An estimated delivery date is the arrival promise shown before purchase, a trust instrument with a settlement day.

Ethical sourcing chooses suppliers on labor and environmental practice, with the traceability to prove it.

Evergreen content stays useful and searched regardless of date, compounding traffic instead of spiking with campaigns.

An exchange swaps a returned item for another version, keeping the sale a refund would end.

An exit-intent popup appears when a visitor’s behavior suggests they’re about to leave, making one last offer or ask.

Express checkout is the skip-the-form wallet row, collapsing checkout into a tap and a glance.

An extended warranty sells certainty beyond the included promise, checkout’s quiet profit center.

Faceted navigation is the filter panel that lets shoppers narrow category and search results by attributes like size, price, and rating.

Fake reviews misrepresent their origin, from bought praise to competitor sabotage, and enforcement against them has hardened.

An FAQ page answers a store’s most common questions in short pairs, settling doubts and catching question-shaped searches.

First-party data is information a business collects directly from its own customers, from orders and behavior to reviews and surveys.

A flash sale is a steep discount offered for a short window, often on limited stock, combining urgency and scarcity in one event.

Flat rate shipping charges one predictable price per shipment or zone, regardless of weight.

FOMO, or fear of missing out, is the anxiety that others are taking an opportunity you might lose, and in ecommerce it is what nudges shoppers to act before an item sells out or an offer ends.

Form optimization makes the asking cheap, field-level craft at the last fence between cart and order.

Founder-led marketing puts the founder’s face and story on the brand, the channel no competitor can copy.

A fractional CMO is senior marketing leadership part-time, executive judgment without the executive payroll.

Fraud detection screens orders for stolen-card and bad-intent signals before they ship.

A free shipping threshold waives delivery cost above a minimum order value, nudging shoppers to add items to qualify.

Freight is the bulk transport of goods by sea, air, rail, or truck, a top cost line and the biggest block of lead time.

Friction is everything between wanting and buying, the cumulative tolls a visitor pays in abandonment.

Friendly fraud is a chargeback on a legitimate purchase, the dispute that looks like a customer.

Fulfillment is the full process of getting an order to the customer: storage, picking, packing, shipping, and returns.

Funnel analysis measures where people drop out of a step sequence, giving conversion problems an address.

Gamification adds points, streaks, and play to shopping, deepening engagement when the game is honest.

GDPR is the EU’s data privacy law governing how stores collect, use, and delete personal data of people in the EU.

A gift card is prepaid store value, bought for a fixed amount and spent like cash at that store.

A gift with purchase adds instead of discounting, moving behavior while price integrity survives.

A giveaway buys attention and audience with product, and lives or dies on who remains after the winner’s drawn.

GMROI is what a dollar of inventory earns, margin and turnover refereed into one return on stocked capital.

GMV is the total value of goods transacted through a platform, the flow before fees and returns touch it.

A Google Business Profile is the free listing in Search and Maps carrying a business’s hours, photos, and reviews.

Google Merchant Center is the gatekeeper between the catalog and Google’s surfaces, where disapprovals cost revenue.

Google reviews are the ratings on a Google Business Profile, the first reputation signal most searchers see.

Google Shopping is Google’s product-search surface, showing image-and-price listings built from merchant product feeds.

Gray market is genuine product sold through unauthorized channels: real goods, unofficial route.

A growth loop is growth that feeds itself, each cycle’s output becoming the input that attracts the next customer.

Growth marketing treats the whole revenue system as one experiment surface, testing wherever the constraint lives.

Guest checkout lets shoppers complete a purchase without creating an account, removing a common last-step barrier.

Headless commerce separates the customer-facing storefront from the commerce engine behind it, connected through APIs.

A heatmap paints clicks, taps, and scroll depth onto the page, showing how it’s actually used.

A help center is the store’s searchable self-service library of support articles, resolving common questions without tickets.

A hero product is the bestseller carrying the brand, elected by the market and run like the flagship it is.

Hook rate is how many viewers survive a video ad’s opening seconds, the first gate everything else plays behind.

An impression is one instance of an ad, listing, or message being displayed, whether or not anyone engaged with it.

Impression share is the slice of your available auction you actually won, the headroom gauge for paid growth.

Incentivized reviews trade rewards for reviews, allowed in disclosed forms and prohibited where sentiment is bought.

Incoterms are standardized trade terms defining where seller responsibility ends and buyer responsibility begins.

Incrementality is the sales marketing actually caused, the audit on conversions platforms merely witnessed.

Influencer marketing partners with creators to put products in front of their audiences through sponsored and gifted content.

Inventory management is tracking what stock you have and when to reorder, balancing stockouts against overstock.

Inventory turnover is how fast stock becomes cash again, the metric deciding how much business the balance sheet carries.

An invoice is the formal, numbered request for payment that accounting, payables, and audits run on.

Kitting is pre-assembling multiple items into one sellable SKU, moving fulfillment work upstream into batches.

A KPI is a metric promoted to a job, the chosen few numbers a store steers by instead of merely reporting.

Landed cost is what a unit truly costs by the time it’s sellable: product, freight, duties, and fees combined.

A landing page is a standalone page built for one campaign and one action, stripped of navigation and competing paths.

Last-mile delivery is the final leg to the door, where density collapses and delivery cost concentrates.

Lead ads are Meta’s pre-filled form inside the feed, trading lead quality for volume at deleted friction.

A lead magnet is something offered in exchange for an email address, from discounts to guides and quizzes.

Lead time is the wait between ordering and having goods in hand, the horizon every inventory bet is placed across.

The learning phase is the algorithm’s calibration period, where patience and batching are performance inputs.

Lifecycle marketing matches the message to the customer’s stage, replacing the calendar with the customer’s clock.

A line extension stretches an existing line under a trusted name, the cheapest believable launch and its own risk.

A line sheet is the wholesale catalog on one document, the passport for a D2C brand entering retail.

A link in bio is social’s one clickable door, the little page quietly handling every post’s conversion handoff.

Liquidation converts stuck inventory to cash at market truth, the honest exit when markdowns can’t save it.

List hygiene keeps the email list clean and engaged, trading vanity size for real inbox reach.

Live chat is real-time text support on the store, catching shopper questions while they’re still on the page.

Livestream shopping is selling on live video, with real-time demos, questions, and buying inside the stream.

Local inventory ads are Shopping ads that know your shelves, spending the store network as an advertising advantage.

Local payment methods are how each market actually pays, the conversion layer card-only checkouts miss.

Local SEO is earning visibility for searches with local intent, from near-me queries to the map pack.

Localization adapts the store to a market beyond translation: currency, sizes, payments, and norms made native.

A lookalike audience is the platform finding strangers who resemble your customers, prospecting from proof.

A loss leader is sold at a loss on purpose, one product eating margin so the customer relationship earns it back.

Loyalty fraud games and steals rewards value, treating points as the currency they are with locks they often lack.

A loyalty program rewards customers for repeat purchases and engagement with points, tiers, perks, or store credit.

Loyalty tiers turn rewards into status, purchase decisions into progress decisions.

MAP is a manufacturer’s floor on advertised prices, protecting price perception and retailer margins.

A markdown is a permanent price cut that pays for inventory misses, cheapest when taken early.

Marketing automation is messaging that runs itself on customer behavior, staffing every moment at once.

The marketing mix is the four-lever reminder that most marketing problems are not promotion problems.

Marketing mix modeling estimates each channel’s real contribution from spend and sales history, no tracking required.

A marketplace is a platform where many sellers list products and the platform owns the shopping experience, from search to checkout.

Marketplace SEO is ranking inside the platform’s own search, where conversion and trust signals are the fuel.

Media buying is purchasing attention on purpose, the lever that decides who sees the ad and at what cost.

Membership commerce is retail behind a paid membership, trading a recurring fee for benefits that concentrate spending.

MER is total revenue over total marketing spend, the blended number immune to attribution politics.

Ecommerce merchandising decides what shoppers see and in what order across categories, search, and features.

A merchant account is the underwritten card-acceptance account where transactions settle, on terms set by your risk.

Message match is the ad’s promise kept on the landing page, continuity that converts the click already paid for.

The messy middle is the explore-evaluate loop between wanting and buying, where shoppers circle instead of descending.

The Meta Pixel is the store’s behavior reporter to the ad platform, the signal every campaign outcome runs on.

A micro-conversion is a small yes on the way to the purchase, lighting the corridor where intent leaks.

Microcopy is the store’s smallest sentences, interface words doing conversion work one phrase at a time.

A mini cart is the drawer-style cart preview that confirms the add and keeps the session moving.

Mobile commerce is shopping on phones and tablets, the majority of ecommerce traffic and its biggest conversion challenge.

A money-back guarantee is risk reversal in writing, making wrong free and letting the doubter buy.

MOQ is the smallest order a supplier will accept, setting the entry ticket and inventory risk of a product bet.

MSRP is the manufacturer’s suggested retail price, the maker’s recommended selling price that retailers may adjust.

Multi-currency prices and charges shoppers in their own currency, removing the math and the doubt from foreign prices.

Multichannel is selling in multiple places at once, each channel run as its own storefront.

Mystery shopping is buying from yourself as a stranger would, auditing the experience from the customer’s side.

Native advertising is paid placement in the platform’s clothes, surviving by not being shaped like an ad.

Nearshoring moves production closer to the market, re-pricing the sourcing decision on landed cost and speed.

Negative keywords are the searches a store refuses to buy, the exclusion memory that protects every campaign.

A negative review is public criticism read first and trusted most, and the reply is read by everyone after.

Net Promoter Score (NPS) measures customer loyalty by asking how likely someone is to recommend you, answered 0 to 10 and reported from -100 to 100.

Net terms are pay-later invoice terms like net 30, the standard credit arrangement of B2B trade.

New customer ROAS counts return on first-time buyers only, the acquisition truth blended numbers flatter over.

A north star metric is the single value-capturing number a business steers by, aligning every team’s corner.

Omnichannel is running every sales and communication channel as one connected experience with shared inventory, identity, and history.

One-click checkout completes a purchase from stored details in a single confirmation, removing the form where carts die.

One-page checkout is the whole transaction on one screen, checkout’s oldest design argument settled by testing.

Online reputation management is the deliberate care of how a brand looks where people check, from reviews to AI answers.

Open rate is the percentage of delivered emails that were opened, a directional metric made less reliable by inbox privacy features.

Open-box is the returned-but-fine tier resold honestly at a discount, returns turned from write-off into channel.

An order bump is the one-tick add-on beside the payment button, riding checkout’s peak intent.

An order confirmation is the message sent right after purchase, confirming the order and setting expectations for what’s next.

An order management system is the hub tracking every order across channels from placement to delivery and return.

An order tracking page shows a live order’s status and expected delivery, the page customers revisit most between purchase and doorstep.

Organic traffic is visitors who arrive from unpaid search results rather than ads, social, email, or direct visits.

An out-of-stock page is a product page whose item can’t currently be bought, and what the store shows in place of the buy button.

A packaging insert is anything added to the shipped box beyond the order itself, from thank-you cards to QR review prompts.

A packing slip is the document inside the box listing the shipment’s contents for the receiver to check against.

Page speed is how quickly a page becomes visible and usable, a driver of both conversion and search visibility.

Paid traffic is visitors acquired through advertising, from search and shopping ads to social and display campaigns.

Payback period is how long a customer takes to repay their acquisition cost, the cash question behind growth.

A payment gateway is the service that securely carries checkout payments from the store to card networks and banks for approval.

A payment processor moves the money from checkout through the card networks to the merchant’s account.

PCI compliance is meeting the card industry’s security standard for handling cardholder data.

Penetration pricing enters low on purpose, converting margin into the foothold that makes full price defensible.

Performance marketing is paid acquisition judged by measurable return, the machine that turns budget into orders.

Performance Max is Google’s everything-at-once campaign, reach and automation traded for control and visibility.

Personalization adapts what each shopper sees, from product recommendations to triggered emails, based on their behavior and profile.

A photo review attaches the customer’s own picture to the rating, turning words into visible evidence.

Pick and pack is the core fulfillment job: retrieving ordered items, packing them, and handing boxes to the carrier.

A PIM is the single source of truth for product content, managed once and published to every channel.

Platform risk is revenue depending on someone else’s rules, hedged by moving assets onto owned land early.

POAS is profit on ad spend, ROAS with costs subtracted, re-ranking campaigns by what conversions actually keep.

A pop-up shop is temporary retail built to test, launch, or make a moment, with the deadline as a feature.

A popup is the store interrupting on purpose, a craft whose whole discipline is the exchange rate on attention.

A POS is the in-person sales system for payment, inventory, and customers, ideally sharing one truth with the online store.

Positioning is the place a brand claims in the customer’s mind relative to alternatives, and everything that follows from it.

A post-purchase email is any message sent after the order, from confirmation and shipping updates to the review request and reorder nudge.

Post-purchase experience is everything after payment, where repeat purchases, reviews, and reputation get decided.

A post-purchase survey asks short questions right after checkout, capturing discovery and decision data tracking can’t see.

A post-purchase upsell is the one-click offer after payment, the only upsell that can’t cost the sale.

A pre-shipment inspection checks the order at the factory, moving quality’s moment of truth to where leverage lives.

A preference center is the customer’s control panel for the relationship, the options between all and nothing.

A preorder sells a product before it ships or exists in stock, converting demand into orders ahead of availability.

Price anchoring uses a reference number, like a struck-through original price, to shape how the actual price is judged.

A price drop alert notifies shoppers who saved or watched a product when its price goes down.

Price match is the promise to meet a competitor’s lower price on the same item under stated conditions.

Pricing power is the ability to raise prices without losing the business, the market’s verdict on differentiation.

Print on demand manufactures per order, launching products as files with zero inventory risk and thin margins.

A privacy policy is the store’s public, binding statement of what data it collects, why, and who it shares it with.

Private label is selling products made by someone else under your own exclusive brand, capturing margin and blocking comparison.

Product badging is the small labels steering attention on product cards, merchandising’s voice at scanning speed.

A product bundle packages several items together at one combined price, usually lower than buying each separately.

Product comparison puts candidate products side by side on the specs, price, and ratings that decide between them.

A product configurator lets shoppers build their version of a product, with preview and price updating per choice.

A product description is the written pitch on a product page, covering what the item is, does, and answers before purchase.

A product detail page (PDP) is the page for a single product where shoppers see images, price, description, reviews, and the add-to-cart button.

A product drop is a limited release at an announced moment, where buyers wait for products instead of the reverse.

A product feed is a structured file of catalog data that shopping platforms and ad channels ingest to build product listings.

A product launch is the planned introduction of something new, from buildup through release to follow-through.

Product liability insurance covers harm the product causes, a gate marketplaces and retail buyers check, not just a hedge.

The product life cycle is a SKU’s commercial arc, where naming the stage names the playbook.

Product page SEO makes each PDP rank for the queries that name it, fixed mostly by content only that page can own.

Product photography is the image set that sells an item online, from clean studio shots to lifestyle and detail photos.

A product questions section where shoppers ask about a product publicly and the brand or other customers answer.

A product quiz asks a few questions and recommends the right products, replacing browsing with guided selling.

A product recall pulls sold goods back, the crisis where logistics and reputation share one clock.

A product recommendation is the store suggesting items a shopper is likely to want, from related products to frequently-bought-together blocks.

Product registration converts an anonymous retail sale into a known customer, one serial number at a time.

A product review is feedback a customer leaves about a specific product, usually combining a star rating with written comments about their experience.

Product sampling is trial at scale, letting the product make its own argument and come back as reviews.

Product schema is the machine-readable label on the PDP, the ticket to prices, stars, and AI-readable listings.

Product seeding puts product in the right hands free, manufacturing launch-day witnesses whose word is earned.

Product taxonomy is the catalog’s classification system of categories and attributes that navigation, search, and feeds inherit.

Product-market fit is when the market pulls: repeat buying, referrals, and demand marketing alone can’t explain.

Programmatic advertising is ad buying by machine, impressions auctioned in the milliseconds a page loads.

Progressive profiling learns about the customer in installments, matching each ask to the trust available.

Promo code abuse is discounts exploited beyond intent, from multi-account farming to leaked and stacked codes.

A promotional calendar maps the year’s sales, launches, and seasonal peaks in advance, with prep deadlines attached.

Prospecting is advertising to strangers, the cold half of the account that manufactures what retargeting harvests.

Purchase intent is the likelihood that a shopper will buy, inferred from signals like page views, cart adds, and review reading.

A purchase order is the buyer’s formal order document, the written reference both sides work from.

A push notification is a message delivered to a device’s notification tray from an app or permitted website.

Push takes the message to people not asking; pull answers those already looking, and the split is the media plan.

A QR code bridges physical surfaces to digital actions, from packaging to payments to review collection.

Quick commerce is delivery in minutes from urban micro-warehouses, speed itself turned into the product.

Quick view opens a product’s essentials in an overlay from the category grid, letting shoppers inspect without leaving the page.

Rating distribution is the shape behind the average, the star breakdown shoppers read and judge for honesty.

RCS business messaging is texting upgraded with verified senders and rich cards inside the native thread.

Rebranding rebuilds the identity while the business trades, justified by real obstacles, not boredom.

Recommerce is organized resale of pre-owned goods, with sourcing, grading, and pricing run as a business.

A referral program rewards existing customers for bringing in new ones, usually with credit or discounts for both sides.

A refund is returning the customer’s money, full or partial, and the trust-under-stress moment of handling it well.

Refurbished products are restored, graded, and warrantied pre-owned items, with grading honesty as the product.

Rental commerce sells access instead of ownership, with utilization and the refurb loop as the margin engine.

Repeat purchase rate is the percentage of customers who buy more than once, a core measure of loyalty and product satisfaction.

Replatforming SEO carries years of search equity through a platform migration instead of 404ing it in a weekend.

Reputation marketing promotes earned proof, putting ratings, reviews, and press where buying decisions happen.

Retail media is advertising sold by retailers on their own properties and purchase data, ads at the digital shelf itself.

Retargeting shows ads to people who visited your store and left, bringing them back to the products they viewed.

Return rate is the percentage of sold items that customers send back, a cost center and a signal about expectation gaps.

Returns fraud exploits the returns process, from wardrobing to empty boxes, repricing generosity built for honest use.

A returns policy states the terms for sending items back: the window, conditions, costs, and outcomes.

Revenue per visitor is what the average visit is worth, conversion and order value collapsed into one honest number.

Revenue-based financing is capital repaid as a slice of sales, the funding instrument built around ecommerce’s shape.

Reverse logistics is the supply chain running backward: returns moving from customers through inspection to their next state.

Review analytics treats reviews as data, the largest honest dataset most stores own and the least analyzed.

Review bombing is a coordinated flood of negative reviews aimed at the rating, the trust system weaponized.

Review gating is the practice of screening customers before asking for a public review, so only the happy ones are invited to post it.

Review import moves the corpus when the store moves house, keeping years of proof alive through the switch.

Review moderation is the process of screening submitted reviews for spam, abuse, and policy violations before or after they appear on a store.

A review platform is software that collects, manages, and displays customer reviews for a business across its sales channels.

Review recency is how fresh the visible reviews are, the timestamp dimension of social proof shoppers check.

A review request is a message a store sends after purchase asking the customer to rate or review what they bought, usually by email, SMS, or WhatsApp.

A review response is a public reply from the business to a customer review, visible to every future shopper who reads the thread.

Review schema is structured data added to a page that lets search engines understand its rating, so star ratings can appear directly in search results.

Review SEO puts customer reviews to work for search, the only content that scales with sales instead of headcount.

A review site is an independent destination where customers rate businesses publicly, the second opinion buyers seek.

Review syndication is the distribution of a product’s reviews from one place to other sites and channels where the product is sold.

Review velocity is the rate and recency of incoming reviews, the freshness dimension of social proof.

A review widget is an embeddable component that displays reviews, ratings, and customer photos on a website page.

RFID tags items with radio-readable chips, making counts continuous and receiving self-verifying.

RFM analysis scores customers on recency, frequency, and monetary value, mapping the list into actionable segments.

Rich snippets are search results enhanced with extra details like star ratings, price, or availability, generated from structured data on the page.

ROAS is revenue attributed to advertising divided by ad spend, the working efficiency gauge of paid channels.

RTO is the parcel coming back undelivered at the merchant’s expense, the silent margin eater of COD markets.

Safety stock is the inventory buffer beyond expected demand that absorbs spikes and delays before they become stockouts.

A sales funnel is the narrowing path from stranger to customer, staged as awareness, interest, consideration, and purchase.

Sales tax nexus is the connection to a US state that obligates a seller to collect its sales tax, physical or economic.

Scarcity is limited supply used as a buying trigger, from low-stock alerts to limited editions and exclusive drops.

Seasonal SEO ranks for demand on a calendar, a timing and persistence discipline wearing a keyword hat.

Seasonality is the predictable annual rhythm in a store’s demand, shaping inventory, budgets, and how metrics are read.

Segmentation splits an audience into groups treated differently, so messages match the group instead of the average.

Sell-through rate is the share of received inventory sold in a period, grading how well buying matched demand.

Seller feedback is the marketplace rating the merchant’s handling of orders, separate from product reviews.

A seller rating is the aggregated review score for the store itself, shown on ads, listings, and marketplace pages.

Sentiment analysis is machines reading feeling in reviews and mentions, restoring the reading nobody has time for.

Server-side tracking sends conversion events from your server via platform APIs, restoring signal browsers block.

A session is a single visit to a website, grouping the pages viewed and actions taken until the visitor leaves or goes idle.

Session recording replays individual anonymized visits, turning conversion drops into visible snags.

Share of search is your slice of category search demand, the nearly free brand-health metric that leads market share.

Ship from store fulfills online orders from retail shelves, trading warehouse distance for local speed.

A shipping confirmation is the message sent when an order ships, carrying tracking details and the expected delivery date.

Shipping insurance is paid protection on the parcel, turning doorstep roulette into a line item and an instant yes.

Shipping zones are the geographic groupings a store’s rates and delivery promises are organized by.

Shoppable UGC is customer-created photos and videos tagged with products so viewers can click through and buy what they see.

A shopping cart holds declared intent between browsing and buying, the store’s most recoverable revenue.

Showrooming is inspecting in store and buying online, the split retailers learned to capture instead of fight.

Site architecture is the catalog organized as pages, the silent ranking system deciding what authority reaches.

Site search is the store’s own search box, matching shopper queries to products with suggestions, synonyms, and typo tolerance.

A size guide translates a store’s sizes into measurements and fit notes, helping shoppers order right the first time.

A SKU (stock keeping unit) is a store’s internal code identifying one specific sellable variant of a product.

SKU rationalization prunes the catalog on evidence, making every product and variant pay rent.

SMS marketing reaches opted-in customers by text message with updates, offers, and requests that need immediate attention.

Social commerce is selling products directly inside social platforms, where discovery, product pages, and checkout all happen without leaving the app.

Social listening monitors and reads public conversation about the brand, catching what customers say but don’t send.

Social login lets shoppers sign in with Google or Apple instead of creating another password.

Social media marketing builds presence and demand on the platforms where audiences already scroll.

Social proof is the effect where people look to the actions and opinions of others to guide their own decisions, and in ecommerce it is the engine behind reviews and ratings.

A social proof notification is a small live popup showing real store activity, like recent purchases or new reviews.

Social search is product research inside social apps, ranked by engagement, invisible to classic-SEO-only brands.

A split shipment is one order arriving in multiple deliveries, shipped from different places or times.

Sponsored products are pay-per-click listings ranking among organic marketplace results, the paid way onto page one.

An SSL certificate enables HTTPS, encrypting the connection between shopper and store.

A star rating is a 1-to-5 score that summarises how customers feel about a product or store at a glance, most often shown as filled and empty stars.

Statistical significance is the line between a result and a coincidence, the discipline protecting tests from eagerness.

A sticky add to cart pins the buy button to the screen while the shopper scrolls, keeping purchase one tap away.

A stockout is demand meeting an empty shelf, the cost that hides because it never invoices.

Store credit is value a customer holds with the store, issued through returns, rewards, or goodwill instead of cash.

A store locator is the find-us page mapping locations or stocking partners, with hours and directions per spot.

A subscription box is curation on a schedule, selling surprise and ritual with churn as the boss metric.

Subscription commerce sells products on a recurring schedule, from replenishment and curated boxes to paid memberships.

Surprise and delight is unpromised generosity, the gesture that becomes the review’s second paragraph.

Sustainable ecommerce manages a store’s environmental and social footprint on purpose, with claims kept honest.

A tag manager deploys and controls tracking scripts from one container, with rules, versioning, and consent gating.

Take rate is the platform’s percentage of GMV, the price of the channel for everyone selling through it.

A tech stack is the set of connected systems a store runs on, from platform and payments to marketing and ops.

Terms of service are the store’s contract with users: the rules of orders, payment, liability, and disputes.

A thank-you page is the screen right after checkout, the highest-goodwill moment a store gets with a customer.

Third-party logistics (3PL) is outsourcing warehousing, picking, packing, and shipping to a specialized provider.

TikTok Shop is the marketplace inside TikTok, with an open affiliate program as its distribution engine.

Tokenization replaces card numbers with stand-in tokens, enabling saved cards and subscriptions without holding card data.

A trade-in program buys back old products as credit toward new ones, feeding upgrades and resale inventory at once.

Transactional email is action-triggered mail like confirmations and receipts, the messages customers actually await.

Triangulation fraud puts a fake storefront between real buyers and real stores, paying with stolen cards in the middle.

A trust badge is a small visual credential, from secure-checkout marks to rating seals, that reassures shoppers at a glance.

A trust signal is any element on a page that reassures a shopper and lowers the perceived risk of buying, from reviews and badges to guarantees and secure-checkout marks.

Try before you buy ships the decision home, charging only for what stays, uncertainty attacked at its root.

UGC ads run customer-style content as paid creative, proof the brand owns surviving the scroll ads can’t.

A UGC creator makes customer-style content for hire, selling the asset and its rights, audience not included.

UGC rights management gets and tracks permission to reuse customer content, turning fan photos into licensed assets.

Unboxing is the first physical experience of an order, the designed moment of opening the package and meeting the product.

Unified commerce runs every channel on one platform and one real-time data core, removing the seams omnichannel synced over.

Unit economics measures the business one order at a time, answering whether the next sale funds it or drains it.

Unsubscribe rate is the percentage of delivered emails that led recipients to opt out of future messages.

An upsell is an offer to buy a better or bigger version of the product the shopper already chose, raising the order’s value.

Urgency is a time-based reason to act now instead of later, such as a sale deadline or fast-shipping cutoff.

User testing is watching real people attempt real tasks on the store, the cheapest reality check in CRO.

User-generated content (UGC) is any content created by customers rather than the brand, such as reviews, ratings, photos, and videos of a product in real use.

UTM parameters tag URLs with source, medium, and campaign so analytics knows where visits came from.

A value proposition is the clear answer to why buy this here: the outcome, the audience, and the difference.

Vanity metrics flatter without informing, climbing pleasingly while the business question goes unanswered.

VAT is the consumption tax of the EU, UK, and much of the world, charged through the chain and borne by the consumer.

A vendor chargeback is a retailer fining its supplier for routing-guide violations, the compliance tax of big retail.

A verified review is a rating or written review confirmed to come from a genuine, documented purchase of the product, rather than an anonymous or unconfirmed submission.

Video commerce is selling through video, from shoppable clips and demos to live streams and customer footage.

A video review is the customer on camera, the format that shows the product working instead of describing it.

A video sales letter is the long-form pitch performed, the container for arguments a feed ad can’t carry.

Viral coefficient is how many new customers each customer brings, the math deciding if growth multiplies or adds.

Visual search lets shoppers search with an image, catching the demand that words can’t describe.

Voice commerce is shopping by speaking, strongest for reorders and lists, with screens finishing discovery.

Voice of customer is the organized practice of hearing customers across reviews, surveys, and support, and acting on it.

A volume discount lowers the unit price for buying more, trading per-unit margin for commitment.

A wall of love is curated customer praise on one page, scattered persuasion assembled into overwhelming evidence.

A warehouse management system is the software running the warehouse: locations, picking, counts, and channel sync.

A warranty is the promise that a product will work for a stated period, and the remedy if it doesn’t.

A welcome email is the first message a new subscriber receives, sent at the moment of highest attention.

WhatsApp commerce runs selling, service, and follow-up inside the app that is, in much of the world, the phone.

White label is a ready-made product sold by many sellers under their own brands, trading exclusivity for speed.

Wholesale is selling in bulk to businesses that resell, trading margin for distribution and steadier volume.

A win-back email targets customers who’ve gone quiet past their usual buying cycle, aiming to reactivate them.

A wishlist lets shoppers save products for later without committing them to the cart.

Word-of-mouth marketing is driving growth through customers recommending a brand to others, both organically and through prompted programs.

The zero moment of truth is the research before the shelf, the decision made in advance on other customers’ experiences.

Zero-party data is what customers state on purpose, the declared layer that personalizes without surveillance.

3D Secure is the card networks’ checkout authentication step, trading a little friction for fraud liability shift.