<aside> <img src="/icons/error_red.svg" alt="/icons/error_red.svg" width="40px" /> Review, update, and add your own commonly used word, brand names, and product terminology.

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Standardized spellings

These words can be slippery. Here’s how we write them. (If it’s not on this list, defer to the AP Style Guide.)

• add-on (noun, adjective), add on (verb)
• back end (noun), back-end (adjective)
• best seller (noun), best-selling (adjective)
• beta
• brick-and-mortar
• checkbox
• coworker
• click-through rate (CTR)
• cost per click
• double-click
• drop-down (noun, adjective), drop down (verb)
• e-commerce (the industry)
• ePub
• email (never hyphenate, never capitalize unless it begins a sentence)
  • To name
  • From name
  • Reply-to name
  • Subject line
  • Cc, Bcc
• emoji (singular and plural)
• front end (noun), front-end (adjective)
• geolocation