Best Onelook Thesaurus Apps

144+ iOS apps curated and reviewed

4.5 avg rating
17 free apps
Updated June 2026

With an average user rating of 4.5★, the onelook thesaurus category is one of the App Store's strongest. Browse all 144+ apps we track, sorted so the most loved ones surface first.

Top Picks for Onelook Thesaurus

OneLook Thesaurus#1

OneLook Thesaurus by Datamuse Corporation

Find the right word fast
Editor's Choice
🔍 Reference
3.8(19 ratings)
FreeIn-App Purchases
OneLook Thesaurus screenshot 1
OneLook Thesaurus screenshot 2
OneLook Thesaurus screenshot 3
OneLook Thesaurus screenshot 4
OneLook Thesaurus screenshot 5
OneLook Thesaurus screenshot 6

This app helps writers find the perfect word or phrase quickly. It offers advanced search features, custom keyboard integration, and speech input for effortless word discovery. Ideal for creative writing, word games, and expanding vocabulary.

Dictionary.com: English Words#2

Dictionary.com: English Words by Curiosity Media, Inc.

Dictionary, Thesaurus, Vocab
Strong Contender
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
Dictionary.com: English Words screenshot 2
Dictionary.com: English Words screenshot 3
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Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

What We Love

  • 🚀 Robust dictionary and thesaurus
  • 🤓 Helpful resources like blogs and articles
  • 💡 Useful word games and puzzles
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues
Power Thesaurus#3

Power Thesaurus by Radyushin Pty Ltd

Comprehensive. Fast. Reliable.
Worth Considering
🔍 Reference
4.8😊(2.9K ratings)
FreeAdsIn-App Purchases
Power Thesaurus screenshot 1
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Find accurate synonyms, antonyms, definitions, and related words with this comprehensive and fast thesaurus. Designed for writers, students, and professionals, it offers intuitive navigation and smart filters to help you express ideas clearly and confidently.

What We Love

  • ⭐ Invaluable tool for everyone
  • 🚀 Must have
  • ⭐ Superior
  • ⭐ Synonyms

Room to Improve

  • 🔌 Could be better
  • 🐛 Crashes
  • 🐛 Crashes the second you tried to open it

More Onelook Thesaurus apps to explore

4
WordWeb Dictionary
WordWeb Dictionary
WordWeb Dictionary
Offline ad-free dictionary
Free

This app provides a comprehensive offline English dictionary and thesaurus with fast searching, spelling suggestions, definitions, and usage examples. It offers extensive word data and advanced search filters without requiring an internet connection.

Offline dictionary and thesaurusFast searchingSpelling suggestions
🔍 Reference
(85)
free
5
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
🔍 Reference
(4.3K)
free with in-app purchases
6
FreeSaurus - The Free Thesaurus!
FreeSaurus - The Free Thesaurus!
FreeSaurus - The Free Thesaurus!
by Weeswares Pte Ltd
Free

This is a straightforward thesaurus app that provides synonyms and antonyms for words. It focuses on simplicity and ease of use, offering related words alongside definitions. An internet connection is required for it to function.

Synonyms and antonymsRelated wordsSimple interface
🔍 Reference
(120)
free
7
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Access a comprehensive dictionary, thesaurus, and translation tool with millions of definitions and synonyms. Explore specialty dictionaries, learn new words daily, and play word games. This app offers offline access and integrates seamlessly with other applications.

Offline dictionary and thesaurusMillions of definitions and synonymsWord of the Day and Idiom of the Day
🔍 Reference
(14K)
free with in-app purchases
8
Thesaurus dictionary- Wordloop
Thesaurus dictionary- Wordloop
Thesaurus dictionary- Wordloop
Synonyms power up vocabulary
Free

Enhance your writing by accessing a thesaurus directly from your keyboard. Select any word in any app to instantly see synonyms and related terms, helping you expand your vocabulary and refine your text. This ad-free tool offers a simple and effective way to improve your communication.

Keyboard thesaurus integrationInstant word suggestionsSynonym lookup in any app
🔍 Reference
(258)
free with in-app purchases
9
Spanish Dictionary & Thesaurus
Spanish Dictionary & Thesaurus
Spanish Dictionary & Thesaurus
with English Translations
Free

Access a comprehensive Spanish dictionary and thesaurus with English translations. Look up definitions, verb conjugations, and synonyms. Features include offline access, audio pronunciations, and voice search for convenient word discovery.

Offline Spanish dictionarySpanish to English translationsAudio pronunciations
🔍 Reference
(186)
free with in-app purchases
10
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
by TheFreeDictionary.com
$9.99

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 experienceOffline English dictionary and thesaurusOffline dictionaries in 13 languages
🔍 Reference
(2.5K)
paid
11
LookUp: English Dictionary App
LookUp: English Dictionary App
LookUp: English Dictionary App
Build vocabulary, a word daily
Free

Enhance your English vocabulary with a daily word, interactive quizzes, and a comprehensive dictionary. Features include visual learning aids, audio pronunciations, and translations to over 20 languages. Ideal for learners and word enthusiasts.

Daily Word of the Day with illustrationsComprehensive English Dictionary & ThesaurusAudio pronunciations and example sentences
🔍 Reference
(3.1K)
free with in-app purchases
12
Dictionary - English
Dictionary - English
Dictionary - English
English Dictionary Offline
Free

This offline English dictionary and thesaurus provides definitions, synonyms, antonyms, and example sentences for over 147,000 words. It offers intelligent word suggestions, spelling corrections, and integrates with Wikipedia for deeper learning. Save favorite words and track your search history.

Offline dictionary and thesaurus147,000+ wordsSynonyms and antonyms
🔍 Reference
(108)
free with in-app purchases
13
Webster Roget's A-Z Thesaurus
Webster Roget's A-Z Thesaurus
Webster Roget's A-Z Thesaurus
New World® English reference
$12.99

Access over 300,000 synonyms and antonyms arranged alphabetically for precise communication. This comprehensive linguistic resource offers extensive word comparisons, examples, and grammatical information. Enhance your vocabulary with customizable themes, advanced search tools, and engaging learning features.

300,000+ synonyms and antonymsAlphabetical arrangementSearch autocomplete
🔍 Reference
(129)
paid
14
English Dictionary *
English Dictionary *
English Dictionary *
Thesaurus and Vocabulary words
Free

Enhance your English vocabulary with a comprehensive offline dictionary and thesaurus. Access over 500,000 words, their meanings, synonyms, antonyms, and pronunciations. Perfect for students and professionals to improve language skills anytime, anywhere.

Offline word searchSynonyms and antonymsWord definitions
🔍 Reference
(1.1K)
subscription
15
Bangla Dictionary ++
Bangla Dictionary ++
Bangla Dictionary ++
English & Bengali Translator
Free

This app provides a comprehensive English and Bengali dictionary with translation capabilities. It offers offline access to over 350,000 words and phrases, including pronunciation, and features tools for vocabulary building and language learning.

Bilingual English-Bengali dictionaryOffline translation for words and phrasesOffline pronunciation
📚 Education
(6.7K)
free with in-app purchases
16
Terminology
Terminology
Terminology
Dictionary•Thesaurus•Research
Free

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 dictionarySynonyms, antonyms, and word relationsCustomizable resources for web and app searches
🔍 Reference
(1K)
freemium
17
Roku TV Remote Control Mobile
Roku TV Remote Control Mobile
Roku TV Remote Control Mobile
Smart Play Universal Remoto
Free

Transform your smartphone into a powerful remote for your Roku TV or streaming device. Effortlessly control playback, volume, navigate menus, and launch apps with an intuitive interface. Enjoy seamless wireless control from the palm of your hand.

Full remote functionality (power, volume, channels, playback)Touchpad navigationQuick app launch
🎬 Entertainment
(1.4K)
subscription
18
WordBook (Universal)
WordBook (Universal)
WordBook (Universal)
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers extensive definitions, word origins, and pronunciation guides. It includes a built-in spell checker, bookmarking, and advanced search capabilities for word puzzles.

Professionally recorded pronunciationsWord origin information (Etymologies)Built-in spell checker
🔍 Reference
(266)
paid
19
Kurdish Dictionary - Dict Box
Kurdish Dictionary - Dict Box
Kurdish Dictionary - Dict Box
English Kurdish Translation
Free

This app serves as a comprehensive English to Kurdish and Kurdish to English dictionary and translator. It offers offline functionality, pronunciation, definitions, and the ability to translate words directly within other applications. Users can also find related words, phrases, and even use image search for a richer learning experience.

Offline translation and pronunciationExtensive word and expression databaseIn-app word translation
🔍 Reference
(14K)
free with in-app purchases
20
LexicEN Lite English
LexicEN Lite English
LexicEN Lite English
Offline Dictionary & Thesaurus
Free

This offline dictionary and thesaurus provides quick access to over 150,000 words with definitions, pronunciations, and example sentences. Easily look up words, manage favorites, and view search history without an internet connection.

Offline search150,000+ wordsDefinitions, pronunciation, examples
🔍 Reference
(1.2K)
free with in-app purchases