Companion Thesaurus18.0 - App Store

A complete thesaurus application with over 145,000 headwords -each with Synonyms, Antonyms plus lots of hypernyms.

This will fill all your thesaurus needs:
● real-time progressive look-up
● wildcard searches for unknown spellings and quizzes
● Scrolling index overview
● partial and wildcard searches
● Hyperlinks from all entries
● Round-trip links out to supported dictionaries *
● bookmarks with notations
● automatic history
● AI boosted anagram generator
● 3D Touch support
● DarkMode support
● iPhone 18 & iOS27 support
● iPad "Fast App Switching" (Multitasking)
● iPad Pro multi-screen and Drag & Drop
● Support for iPhones, iPads, iPods and macOS
● complete offline use - no internet connection is required
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We recommend this to all users of Enfour's dictionary applications running on UniDict(R) Engine.

This application links to applications running on UniDict(R) Engine -tap on a headword to invoke a search.
Link out to "Companion Thesaurus" just by tapping on any headword.
(Cross-application links support 'round-trip' via the "Back" button.)
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Thesaurus data from WordNet(R) 2.1 from Princeton University's Cognitive Science Laboratory.
(the same as "Thesaurus App", "AED" and "WordBook" -only with much more functionality)
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Running on Enfour's acclaimed "UniDict(R) Engine".
Links work with all "Unidict Engine" English dictionary titles
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Version History Updated Siri support and added Apple Intelligence support (eg. offline AI Teacher on devices that support it)
Fixed an issue with the Bookmarks menu in iOS27. 18.0 3d ago Updates Bookmark sync and backup.
Add support for Anki. 17.0 Jul 14 Better support for iOS26 16.1 Feb 25 A fix for search on conjugations. 16.0.2 09/22/2025 Keeping up to date with the OS 16.0 06/26/2025 Add import and restore of Bookmarks from iCloud Drive. 15.1 03/03/2024 Adds an AI boosted anagram generator.
iOS17 support. 15.0 11/10/2023 Fixes for Flashcards 14.7 08/06/2023 Fix for Bookmark folders 14.6 07/20/2023 Improved security 14.5 07/04/2023 Adds new third-party dictionary links.
Adds a "Open to Search" setting to iPads.
Changes the way it works on iPhones.
Complete update to localizations.
Fixes for Bookmarks. 14.1 03/12/2023 Major update to Bookmarks and History.
• iCloud Sync now works no matter how many bookmarks you have.
• Backups are made locally for all bookmark changes.
• Automatic weekly bookmark backup setting has been added.
• You can now bulk save your search History to Bookmarks. 14.0 02/20/2023 Fixes for iOS 16 13.3 10/07/2022 Better iCloud syncing.
Adds a selectable interface for Bookmark restores.
Adds a setting for third-party keyboards. 13.1 01/25/2022 UI & graphics updated.
Bookmarks are now automatically restored after the app is deleted and reinstalled. (Turn on iCloud Sync setting for this)
Manual Bookmark iCloud restore is now smarter. 13.0 01/11/2022 Fix in licensing 12.1.5 12/11/2021 Interface improvements. 12.1.2 12/01/2021 Adds a "Link Menu" customizing setting. 12.1 11/18/2021 UniDict® Engine update 12.0 10/31/2021 UI update
(MacOS version is released. Owners of this iOS app can download for free) 11.6.5 10/06/2021 Support for iOS15.
Fixes a display issue.

Note: MacOS version now released. Existing users can download for free. 11.6.2 09/23/2021 Support for iOS15.
Note: MacOS version now released. Existing users can download for free. 11.6 09/22/2021 UI fixes.
Fixes for iCloud syncing. 11.5 08/20/2021 UI improvements 11.3 07/10/2021 Fixes for pre-iOS 13 devices. 11.2 05/20/2021