Shopify glossary: 100 e-commerce terms explained

100 e-commerce, SEO, CRO, Liquid, and Shopify terms defined clearly: short definition, concrete Shopify example, and sometimes a blunt take.

SEO

• Canonical tag
• Hreflang tag
• Backlink
• Crawl budget
• Domain Authority (DA)
• Duplicate content
• GEO (Generative Engine Optimization)
• Google index
• Internal linking
• llms.txt

Performance

• LCP (Largest Contentful Paint)
• CLS (Cumulative Layout Shift)
• INP (Interaction to Next Paint)
• FCP (First Contentful Paint)
• TTFB (Time to First Byte)
• Core Web Vitals
• Code splitting
• Lazy loading
• CDN (Content Delivery Network)
• WebP

CRO

• Conversion rate
• AOV (average order value)
• RPV (revenue per visitor)
• A/B test
• Heatmap
• Session recording
• Conversion funnel
• Chargeback
• Above the fold
• Sticky add-to-cart

E-commerce

• Shopify Markets
• Shopify Plus
• Shopify Functions
• Metafield
• Product variant
• Collection
• Shopify Payments
• SKU
• Cart abandonment rate
• DTC (direct-to-consumer)

Liquid

• Liquid
• Shopify 2.0
• Shopify section
• App block
• theme.liquid

Dev

• Shopify CLI
• Headless commerce
• Storefront API
• Admin API
• Webhook

Analytics

• GA4 (Google Analytics 4)
• Google Search Console
• CTR (click-through rate)
• Bounce rate
• Attribution
• CrUX
• Segmentation
• RFM
• Ads pixel
• LTV (lifetime value)

AI & GEO

• LLM (large language model)
• RAG
• AI agent
• MCP
• Prompt engineering
• Zero-knowledge proof
• NFT
• Stablecoin
• Smart contract
• Digital Product Passport

Payments

• 3D Secure
• Shop Pay
• BNPL
• Payment gateway

Logistics

• Incoterms
• 3PL
• Dropshipping
• Average delivery time
• Return rate
• Fulfillment

Marketing

• CAC (customer acquisition cost)
• ROAS
• Email marketing
• Klaviyo flow
• UGC
• Social proof
• Retargeting
• Organic acquisition
• Cross-sell
• Upsell

Business

• Product-market fit
• MRR
• Churn
• MVP
• B2B vs B2C
• E-commerce migration
• SaaS
• Daily rate
• NPS
• Redesign vs optimization