Best Synonym Apps & Games

174+ iOS apps & games curated and reviewed

4.5 avg rating
14 free apps & games
Updated May 2026

With an average user rating of 4.5★, the synonym category is one of the App Store's strongest. Browse all 174+ apps and games we track, sorted so the most loved ones surface first.

Top Picks for Synonym

Word Hippo#1

Word Hippo by KAT IP PTY LTD

Thesaurus and Word Reference
Editor's Choice
🔍 Reference
4.9😊(12K ratings)
FreeAdsIn-App Purchases
Word Hippo screenshot 1
Word Hippo screenshot 2
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Word Hippo screenshot 5
Word Hippo screenshot 6

This app offers a comprehensive suite of word tools, including an advanced thesaurus for synonyms and antonyms, example sentences, rhyming words, and word type identification. It also features word finders for games, definitions, and translations into numerous languages.

What We Love

  • 👍 Multi-functional app with thesaurus, dictionary, and more
  • 🚀 Comprehensive and extensive word lists
  • 📚 Helpful for writing, vocabulary building, and creative expression
  • 💰 Affordable premium upgrade with no ongoing subscription

Room to Improve

  • 🐛 Occasional app freezes or crashes
  • 🔍 Inconvenient to re-enter search term when switching between features
  • 🔍 Lack of offline functionality
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
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Dictionary.com: English Words screenshot 6

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
Power Thesaurus screenshot 2
Power Thesaurus screenshot 3

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 Synonym apps to explore

4
Synonyms Quiz
Synonyms Quiz
Synonyms Quiz
Test, Thesaurus & Dictionary
Free

Challenge your vocabulary with a fun synonym game. Select the correct synonym from multiple choices and learn definitions for over 3800 words. Compete with others and track your progress.

Synonym matching gameOver 3800 wordsWord definitions
🎮 Games
(602)
ad-supported
5
Merriam-Webster Dictionary
Merriam-Webster Dictionary
Merriam-Webster Dictionary
by Merriam-Webster, Inc.
Free

Access America's most respected dictionary, updated with new words and meanings. This app offers offline access, voice search, daily vocabulary challenges, and a thesaurus. It's designed for English language reference, education, and vocabulary enhancement.

Offline dictionary accessVoice search for wordsDaily Word of the Day
🔍 Reference
(320K)
free with in-app purchases
6
Synonyms English Dictionary
Synonyms English Dictionary
Synonyms English Dictionary
Listen sound and work offline
Free

This free English dictionary offers over 9,100 synonyms with audio playback. It works offline and allows customization of voice accents, speed, and pitch. Search for words by starting, ending, or containing specific letters.

Offline functionalityAudio playback for wordsCustomizable voice accents
🔍 Reference
(188)
free
7
WordPal - Vocabulary Builder
WordPal - Vocabulary Builder
WordPal - Vocabulary Builder
Learn new words: expand vocab
Free

Enhance your English vocabulary with this intuitive app. It uses spaced repetition to help you learn new words effectively, offering definitions, examples, and progress tracking. Achieve your language learning goals with daily reminders and streaks.

Spaced repetition learning algorithmMultiple choice synonym practiceWord definitions and examples
📚 Education
(8.8K)
freemium
8
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Thesaurus & Offline Vocabulary
Free

Access a vast collection of dictionaries and thesauruses with definitions, pronunciations, and etymology. Features include offline access, advanced search options, and personalized word lists. Ideal for students, professionals, and word enthusiasts.

15 Oxford DictionariesThesaurus integrationAudio pronunciations
🔍 Reference
(28K)
free with in-app purchases
9
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
10
AZ Synonyms
AZ Synonyms
AZ Synonyms
Best Synonyms Dictionary.
$2.99

Access a comprehensive dictionary of synonyms with over 9,000 entries. This app provides clear definitions, example sentences, and offline access. Easily search for words and save your favorites for quick reference.

Over 9000 entriesOffline dictionary accessClear definitions with examples
🔍 Reference
(963)
free
11
Quick Synonyms
Quick Synonyms
Quick Synonyms
by Furnace Creek Software LLC
$4.99

Instantly find synonyms for any word directly within other iOS apps. Select text, tap Share, and choose the synonym lookup option.

Text action extensionIn-app synonym lookupShare menu integration
🔍 Reference
(3)
paid
12
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
13
Thesaurus Synonyms AI Keyboard
Thesaurus Synonyms AI Keyboard
Thesaurus Synonyms AI Keyboard
Power & Vocabulary & Grammar
Free

This keyboard extension offers a powerful thesaurus and AI writing assistant to help you find synonyms, rephrase sentences, and enhance your vocabulary across all apps. Elevate your writing with intelligent suggestions for richer, more impactful communication.

AI-powered synonym suggestionsSentence and phrase rephrasingSeamless keyboard integration
📊 Productivity
(13)
free with in-app purchases
14
Interactive Thesaurus
Interactive Thesaurus
Interactive Thesaurus
Visual Dictionary & Thesaurus
$2.99

Explore word meanings and relationships with this smart English thesaurus. It helps you find suitable words, expand your vocabulary, and improve grammar through an intuitive interface with semantic relations and color-coded parts of speech. Offline access and sharing options are included.

200,000+ English words and definitionsVisual semantic relations between wordsColor coding for parts of speech
🔍 Reference
(747)
paid
15
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
16
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
17
Roget's II: New Thesaurus
Roget's II: New Thesaurus
Roget's II: New Thesaurus
Synonyms & Antonyms by UniDict
$4.99

Access a comprehensive English thesaurus with millions of synonyms and related terms. Enhance your vocabulary and express yourself more effectively with this powerful reference tool, featuring advanced search and offline capabilities.

Full text of Roget's II: The New ThesaurusMillions of synonyms and related termsReal-time progressive look-up
🔍 Reference
(332)
paid
18
Ein-Synonym.de - Wörterbuch
Ein-Synonym.de - Wörterbuch
Ein-Synonym.de - Wörterbuch
by Matthias Graffe
Free
🔍 Reference
(0)
19
Synonyms Finder
Synonyms Finder
Synonyms Finder
Synonym Finder
Free
📚 Education
(0)
20
Thesaurus App
Thesaurus App
Thesaurus App
by Piet Jonas
$0.99

Instantly find synonyms for any word. Explore antonyms, related terms, and user-suggested words. Tap results for new searches and access your search history.

Synonym retrievalAntonym searchRelated terms
🔍 Reference
(4)
free

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