Enfour, Inc. has combined Oxford's largest single volume English Dictionary and largest Thesaurus, plus audio, all in one application —making this the largest Oxford English reference on ANY mobile platform.

● The entire Oxford Dictionary of English, Second Edition (ODE)
● Oxford Thesaurus of English, Second Edition (OTE). Including extensive reading & reference material, over and above the core content
● 70,000 pre-recorded sound files from the Shorter Oxford English Dictionary and Oxford SoundBank with native British voice actors.

◼ Enfour, Inc.'s Application Features:

▪ full content of the unabridged texts
▪ complete appendices and front matter
▪ unique three-way cross-referencing search
▪ real-time progressing look-up
▪ wildcard searches for unknown spellings and quizzes
▪ hyperlinking between dictionary & thesaurus
   plus to and from appendices
▪ unique support for round-trip search from other applications
   (the API is free. Contact Enfour, Inc.)
▪ bookmarks with editable notations
▪ iCloud Bookmark syncing
• 3D Touch support
• iPad Pro multi-screen and Drag & Drop
• iPhone X & 11 support
• DarkMode support
▪ automatic history
▪ complete offline use - no internet connection is required

◼ ODE Description

▶ The foremost single-volume authority on the English language
▶ Hundreds of new words and senses derived from the latest research from the Oxford English Corpus, giving the most complete and accurate picture of the English language

The Oxford Dictionary of English is at the forefront of language research, focusing on English as it is used today, informed by the most up-to-date evidence from the largest language research programme in the world, including the 800-million-word Oxford English Corpus. This revised edition includes hundreds of brand-new words and senses, as well as up-to-date encyclopedic information, and extensive appendices covering topics such as countries, heads of state, and chemical elements.

◼ OTE Description

▶ Authoritative coverage of more synonyms and antonyms than any other A-Z thesaurus
▶ New and up-to-date synonyms and senses, based on the latest research from the Oxford English Corpus
▶ Accessible and easy to use, with synonyms given in order of usefulness and key synonyms highlighted
▶ Lists including foreign words and phrases, and imitative words added to the completely revised centre section giving useful vocabulary on a broad range of topics, from clothes and food, to medicine and music
▶ Special Features: Choose the Right Word boxes that help distinguish between close synonyms, plus Word Links panels: look up the word 'coin' and find the link with 'numismatic'

The WordFinder section of word lists has been fully revised and reorganized with its own quick-reference index and includes topics from clothes and food, to medicine and music, with new lists of foreign words and phrases, archaic words, imitative words, British and American equivalents, and more. It is an invaluable resource to help broaden your vocabulary and provide quick answers to word puzzles and crossword clues.

◼ Sound Files from the Shorter Oxford English Dictionary & Oxford SoundBank

◼ Features:
▶ high-quality recordings with native English pronunciations
▶ accurate coverage of different homographs, variant forms and inflections
▶ Now supported by SearchHub, a utility app for dictionary apps

Powered by Enfour's -"UniDict® Engine 9"

Oxford Dictionary of English (ODE), Second Edition revised
© Oxford University Press 2005
Oxford Thesaurus of English (OTE) Second Edition revised
© Oxford University Press 2006
Soundfiles from the Shorter Oxford English Dictionary
© Oxford University Press 2002
All rights reserved Oxford University Press

What’s New

Version 9.4

Adds a multi-level "Back" button.

Ratings and Reviews

5.0 out of 5
9 Ratings

9 Ratings

Jus d'Orange ,

Glad for the updates

Grateful for the updates to make this compatible with new iOS and new iDevices. This was an expensive app when I bought it. Unlike other dictionary apps that I bought that were also expensive (eg Shorter Oxford English Dictionary) this one continues to update for compatibility while the other ones no longer work on newer devices.

Developer Response ,

Thank you

markbyrn ,

Thanks for the updates

I purchased the Oxford Deluxe way back in the day and although it was quite expensive, it was a worthy investment. It's still the best and most comprehensive dictionary & thesaurus app. Thankfully, it's still updated on occasion and looks great on the latest devices.

Developer Response ,

You are weclome

good for them! ,

Worth it.

If you want a basic dictionary - there are many cheap or free alternatives. I was looking for a few weeks for something like this, but could not find it right away. I was considering buying The American Heritage dictionary (also by Enfour) and actually stumbled upon this app. In my opinion, if you want the best content Oxford is the way to go. This version is unabridged and includes a thesaurus. The books cost much more than this app - and you can keep this one in your pocket.

Something that I wanted to point out to people who are considering this: Obviously the content is amazing, but on the software front Enfour really does an amazing job. It feels native - you can switch from thesaurus to dictionary very quickly and it is very stable. When I first opened it I thought the background was ugly when looking at a list of words. The settings have an option to turn it off, so I did. When it was a plain white background I decided it was perfect. As stated earlier, Enfour also make an American Heritage dictionary that is very well respected and well reviewed - and that version costs less, but for me Oxford Deluxe was the way to go. I say if you're looking for a great dictionary app on your iPhone, check out their products first. Highly recommended.


Enfour, Inc.
552 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Bosnian, Catalan, Danish, Dutch, Finnish, French, German, Hebrew, Hindi, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Kurdish, Lithuanian, Malay, Persian, Polish, Portuguese, Russian, Simplified Chinese, Slovenian, Spanish, Swedish, Tagalog, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
Infrequent/Mild Profanity or Crude Humor


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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