Terminology for OS X Dictionary



Terminology is a browser for the English language – part dictionary/thesaurus and part research tool. Terminology is designed to make it easy to explore words and phrases, diving down to more and less specific terms - accessing the web and other apps for more detail and sharing.

"If you’re looking for the best dictionary app...then look no further than Terminology." – AppAdvice

"9/10...a Must-have Dictionary and Thesaurus App" – AppStorm

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On a Mac? Install Terminology for OS X for free.

Dictionary and Thesaurus

  • Full offline U.S. English dictionary and word reference with simple clear definitions of root words and phrases.
  • Definitions, synonyms, antonyms and deeper word relations such as: more and less specific words, part, part of, members, member of, pertains to and more. Learn more about the dictionary.
  • Audio pronuciations
  • Share extension to lookup any text selection in any app.
  • Favorite terms for quick access.
  • Term browsing history.
  • Add notes to any term.
  • Term of the Day
  • Wildcard (?,*) searching
  • Spelling suggestions.

Reference Tool

  • Actions extend your research with quick links directly to the terms you look up in web resources and other reference apps.
  • Access iOS system dictionaries with "Look up" action.
  • Action Library with pre-configured actions for popular reference, search and other resources - like Wikipedia, Google, IMDb and more.
  • Create and share custom actions (Pro unlock required).
  • Load web resources using in-app browser or Safari.
  • Deep link to terms in other apps when supported.

Great Integration

  • Share extension and Today widget for quick access.
  • 3D Touch and iPad Multitasking/Split View support.
  • Dark theme with auto-switching (Pro unlock required).
  • iCloud sync of favorites, history and actions between multiple devices.
  • Spotlight and Handoff support.
  • Great Dynamic Text and VoiceOver support.
  • Extensive support for URL scheme integration via x-callback-url. Details on the developer page.
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