WordBook icon



Now available for iPhone and iPod touch on the App Store

WordBook is a comprehensive, quick and intuitive dictionary and thesaurus of the English language. It's a great combination of comprehensive contents and fast intuitive interface.

WordBook has been the top selling commercial English dictionary app on iTunes store since its release in 2008.

"One of 15 Best iPhone Apps for English Majors"

April Lentini, CollegeTimes.us

"WordBook leads the parade of free and low-cost dictionary options"

Ben Boychuk, MacWorld.com

1 Definition
2 Index
3 Featured
4 Audio
5 Finder

Definition screen showing dictionary contents with top buttons to access relevant word links, thesaurus and web pages.

Search screen showing input box with built-in spell checker and alphabetical index.

Words of the Day screen showing 6 random words, can be configured to shuffle on device shake.

Audio pronunciation option screen showing different voices available.

Puzzle Solver screen accepting input for anagram or wildcarch searches.

1 Definition 2 Index 3 Featured 4 Audio 5 Finder


  • 150,000 entries with more than 220,000 definitions, 70,000 usage samples
  • 23,000 root word origins (etymologies)
  • 120,000 pronunciation guides in International Phonetic Alphabet (IPA) and other notations
  • Real human voice pronunciations
  • Built-in thesaurus and word links connecting words semantically
  • Unmatched index, wildcard, anagram search capabilities
  • Bookmark (with user's notes) and history management
  • Words of the Day: you get to learn new words daily, shake the device for new random words
  • Browser-like definition content navigation, ability to tap on any word in the content to look up its definition
  • Extending up to 5 web dictionaries to supplement built-in contents


  • iOS version: 3.0 and later (4.x compatible)
  • Devices: iPhone 2G, 3G, 3GS, 4, iPod Touch
  • Resolution: Retina display ready
  • File size: 20MB