Terminology

Terminology

Dictionary•Thesaurus•Research

1K ratings
140 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • October 16, 2013
  • April 29, 2026

Features

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About

Explore the English language with this comprehensive tool. It offers dictionary and thesaurus functions, along with research capabilities to dive deeper into words and phrases. Extend its functionality with custom resources for web and app searches.

Offline U.S. English dictionary
Synonyms, antonyms, and word relations
Customizable resources for web and app searches
Favorite and create term lists
Audio pronunciations
Wildcard and spelling suggestions
iCloud sync and backup
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What users say

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What's New in Terminology

8.0.2

April 29, 2026

For full release notes, visit https://agiletortoise.com/terminology/changelog

Subscription plans

Pro - Annual

Unlock all features

$4.991 Year
How to cancel Terminology subscription ⁉️
2

In-App Purchases

$19.99

Lifetime

Unlimited lists, actions, and more!

Events

Read more about Satisfy Your Curiosity

Satisfy Your Curiosity

New, modernized interface and features

Mar 24, 2025 Apr 24, 2025

User reviews

Great WordNet resource

Terminology is based on the WordNet database, and it is the gem inside this app. I’m not aware that WordNet is available in any other app, or at least any mainstream one. WordNet is a word-finder, not too dissimilar to a thesaurus. It has unfortunately become more or less the province of professional linguists. Terminology brings it to the everyday writer, and its integration with the developer’s Drafts app is especially helpful.

It also provides one-stop shopping to other resources. You can check out Websters, etymologies, etc. from other web-based dictionary resources. Some words, particularly “street” or “urban” words, can have differing meanings depending on what source you check. This app lets you check various sources, including AI-based ones.
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If you like words this is it

Thee app for words. Great all in one tool for words. Dictionary, thesaurus, and more!!!

Dev Can’t Be Trusted

READ RECENT REVIEWS. I had the full version of the app, until the developer updated the app to a subscription model, forcing previous owners to pay for subscription services to make the app useful again. Who’s to say he won’t find ways to upcharge you for other services you already have.

Still the Best

Installed Terminology close to 20 years ago, and it’s the only dictionary / thesaurus app still on my phone and up to date. Used regularly.

The mac app is excellent too (more of the “research” toll there).

Used to be great

Developer decided to destroy his integrity and screw over the people who bought the pro version of this app long ago. What a shame…

Developer apps

User experience

🐞

Reported Bugs

3 issues

Keyboard does not always appear when tapping search

Bug

Crashes or freezes on some devices

Bug

Difficulty adjusting volume for word pronunciations

Bug

Requested Features

5 requests

Add ability to review and manage favorite words

Feature

Implement quiz or flashcard features for learning new words

Feature

Improve keyboard integration and shortcuts

Feature

Add more comprehensive dictionary coverage

Feature

Provide option to revert to previous app version

Feature

FAQ

What does the Terminology app do?

Terminology acts as a browser for the English language, functioning as a dictionary, thesaurus, and research tool. It allows users to explore words and phrases, find definitions, synonyms, antonyms, and delve into deeper word relations. The app also supports custom resources for searching the internet and other reference applications.

What are the key features of Terminology?

Key features include an offline U.S. English dictionary with simple definitions, synonyms, antonyms, and word relations. Users can favorite terms, create lists, view browsing history, add notes, access audio pronunciations, and utilize wildcard and spelling suggestions. It also offers iCloud sync for backup and sharing capabilities.

How much does Terminology cost?

The app is free to use with basic functionality. For advanced features like custom resources, unlimited term lists, and unlimited notes per term, users can opt for 'Terminology Pro,' which is available as an annual subscription or a one-time lifetime unlock.

What kind of resources can I add to Terminology?

You can add custom resources to quickly look up and search terms on websites and in other apps. Pre-built resources for popular sites like Wikipedia, ChatGPT, and Google are available, and you can create your own using simple URL templates. AI resources are also supported for deeper dives into pre-populated prompts.

Who is Terminology for?

This app is designed for anyone who wants to explore the English language more deeply. This includes students, writers, researchers, and individuals with a general curiosity about words and their meanings. Its extensibility makes it a valuable tool for satisfying diverse research needs.