What's New

This app has been updated by Apple to use the latest Apple signing certificate.

- Supports iOS 11 and iPhone X

App Description

FEATURES that make WordBook stand out from other dictionary apps:

- Professionally recorded pronunciation for every single entry

- Word origin information (Etymologies)

- Built-in spell checker with pop-up spelling suggestions

- User's bookmark and note management

- Unmatched sounds-like and wild card search and a powerful word puzzle solver


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.


* 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

* Spoken pronunciations (for all entries)

* 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

* High resolution graphics for Retina display


* “the best in the [inexpensive dictionary] category... This wealth of information is indispensable to the student, and even fun to use” - Jeff Phillips, Macworld

* “One of 15 Best iPhone Apps for English Majors” - April Lentini, CollegeTimes.us

* “None measure up to WordBook” Score: 10/10 - Michael Alexander, AppCraver.com

* “WordBook leads the parade of free and low-cost dictionary options” - Ben Boychuk, MacWorld.com

* “WordBook's iPhone dictionary - the standard for reference apps” Rating: 5/5 - Steven Yaccino, appolicious.com


- WordBook does not required an internet connection except to view web dictionaries or to play online pronunciation voices.
- WordBook includes entries of both American/British spellings. Definitions are written in American English.

iPhone Screenshots

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WordBook Dictionary screenshot 1 WordBook Dictionary screenshot 2 WordBook Dictionary screenshot 3 WordBook Dictionary screenshot 4 WordBook Dictionary screenshot 5

Apple Watch Screenshots

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WordBook Dictionary screenshot 6 WordBook Dictionary screenshot 7 WordBook Dictionary screenshot 8

App Changes

  • September 20, 2012 New version 4.4
  • October 03, 2012 New version 4.4.1
  • October 05, 2013 New version 4.5
  • October 15, 2013 New version 4.5.1
  • October 08, 2014 New version 4.6
  • May 21, 2015 New version 5.0
  • May 23, 2015 New version 5.1
  • June 15, 2019 New version 5.2

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