Dictionary and Thesaurus Pro

Dictionary and Thesaurus Pro

by TheFreeDictionary.com

2.5K ratings
465 reviews
#112 in paid Reference
📚 Education
🔍 Reference
$9.99

Price history


Details

  • Released
  • Updated
  • April 30, 2012
  • April 2, 2026

Features

Dictionary and Thesaurus Pro screenshot #1 for iPhone
Dictionary and Thesaurus Pro screenshot #2 for iPhone
Dictionary and Thesaurus Pro screenshot #3 for iPhone
Dictionary and Thesaurus Pro screenshot #4 for iPhone
Dictionary and Thesaurus Pro screenshot #5 for iPhone
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About

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

Ad-free experience
Offline English dictionary and thesaurus
Offline dictionaries in 13 languages
Offline translations to over 40 languages
Specialty dictionaries (Medical, Legal, etc.)
Word games and daily content
Instant word lookup from other apps
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What users say

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What's New in Dictionary and Thesaurus Pro

14.1.1

April 2, 2026

Bugfixes (including Grammar Quiz)

Charts

Top Paid

📉 112-10

Reference

This app dropped -10 positions in Reference chart.

Last updated on July 19, 2026.

User reviews

Free Dictionary

I would give it a five if it didn’t bounce around quite so much with my “Brain equivalents .” Also, along with Wikipedia, I believe they have the 1997 Soviet union’s Encyclopedia mentioned on occasion as reference material. I have no idea why.

Love it!

To have such a most excellent resource to be conveniently found as a phone app only makes it more beloved. Whatever you missed or have forgotten from your various English classes can be made up for, clarified or expanded upon in this wonderful resource. I’ve had it for years and pretty much use it daily. Definitions, pronunciations, spellings, grammatical use, history and so much more. I treasure this app!
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Essential in this day and age!

I really enjoy learning a new word, every day. I love flexibility of there being a “Thesaurus” available. There’s an entire section on just “Idioms.” It’ll read the word, so I can learn the correct pronunciation. I hear so many mispronounced words, today! There are word games, spelling challenges, historical facts, etc. it’s much, much more than just “ a dictionary”! I have the paid version and I wholeheartedly recommend it!
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Advertised feature doesn’t work

One of the main reasons I bought this was because it’s supposed to let you highlight a word and get the definition via the Share Sheet which would save you from having to copy the word and paste it into another app, but that isn’t working. Instead it says “Not supported. We are sorry, this app is no longer supported. Please switch to one of the currently supported apps.“ The app is listed there so I hope they get this working again. Their email support says they’re working on it. Five stars await.

Besides that issue, it’s a very useful app. It shows a wide spectrum of information which saves me from having to look things up in multiple places. The UI could use a tiny bit of refinement but overall I like that it’s fast, not fancy.
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My favorite dictionary

I can access it on my mobile devices as well as my windows laptop. Simple and fast, this app beats the big names.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Search function sometimes fails to load definitions

Bug

Offline mode has fewer word entries than online

Bug

Occasional sync issues between online and offline data

Bug

Requested Features

4 requests

Add more language dictionaries

Feature

Improve thesaurus with more synonyms and antonyms

Feature

Implement flashcard or vocabulary building features

Feature

Allow users to save custom word lists

Feature

FAQ

What does Dictionary and Thesaurus Pro do?

This app provides a comprehensive offline dictionary and thesaurus with extensive content in English and 13 other languages. It offers definitions, synonyms, example sentences, audio pronunciations, and specialized dictionaries for fields like medical, legal, and financial.

What are the key features of Dictionary and Thesaurus Pro?

Key features include an ad-free experience, offline access to dictionaries and thesauruses, offline translations into over 40 languages, specialty dictionaries, word games, instant lookups from other apps, and voice search.

Is Dictionary and Thesaurus Pro free?

Based on the provided information, this app is a premium version and is a paid application. It does not contain ads or in-app purchases, indicating a one-time purchase model.

What languages are supported by Dictionary and Thesaurus Pro?

The app offers an offline English dictionary and thesaurus, as well as offline dictionaries in 13 other languages, including Spanish, French, German, Italian, Portuguese, Russian, and Chinese. It also provides offline translations of English into more than 40 languages.

How can I look up words instantly in other apps?

You can instantly look up words from other apps or webpages by highlighting the word, tapping 'Share,' then 'More,' and enabling the 'Define' option. A 'Define' icon will appear, allowing you to tap it and see the definition of the highlighted word.