Best Merriam Webster Thesaurus Apps

158+ iOS apps curated and reviewed

4.4 avg rating
12 free apps
Updated July 2026

Merriam is the household name in merriam webster thesaurus, but it's far from the only option. We track 158+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Merriam Webster Thesaurus Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (323K)YesYesJul 2026
2Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (28K)NoYesJul 2026
3Thesaurus dictionary- WordloopThesaurus dictionary- WordloopFree4.5★ (258)NoYesJul 2026
4Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoJul 2026
5Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)NoNoJul 2026
6Power ThesaurusPower ThesaurusFree4.8★ (2.9K)YesYesJul 2026
7Advanced Dictionary&ThesaurusAdvanced Dictionary&ThesaurusFree4.7★ (4.3K)NoYesJul 2026
8TerminologyTerminologyFree4.7★ (1K)NoYesJul 2026

Top Picks for Merriam Webster Thesaurus

Merriam-Webster Dictionary#1

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Editor's Choice
🔍 Reference
4.8😊(323K ratings)
FreeAdsIn-App Purchases
#37in Reference
Merriam-Webster Dictionary screenshot 1
Merriam-Webster Dictionary screenshot 2
Merriam-Webster Dictionary screenshot 3
Merriam-Webster Dictionary screenshot 4

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.

What We Love

  • 🚀 Easy to use
  • 👍 Comprehensive definitions
  • 👍 Helpful thesaurus
  • 🚀 Offline access

Room to Improve

  • 🐛 Ads can be intrusive
  • 🐛 Difficulty closing ads
  • 🐛 Repetitive game questions
Oxford Dictionary & Thesaurus#2

Oxford Dictionary & Thesaurus by MobiSystems, Inc.

Etymology & Offline Vocabulary
Strong Contender
🔍 Reference
4.6😐(28K ratings)
FreeIn-App Purchases
#79in Reference
Oxford Dictionary & Thesaurus screenshot 1
Oxford Dictionary & Thesaurus screenshot 2
Oxford Dictionary & Thesaurus screenshot 3
Oxford Dictionary & Thesaurus screenshot 4
Oxford Dictionary & Thesaurus screenshot 5
Oxford Dictionary & Thesaurus screenshot 6

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.

What We Love

  • 👍 Reliable and simple to use
  • 👍 Comprehensive and best for all English, especially rare and aged language
  • 👍 Very useful for learning new words
  • 👍 Excellent reference app

Room to Improve

  • 🐛 Glitchy, way too many ads
  • 🔒 Annoying popup ads makes it unusable
  • 🔒 Ads stuck in, despite payment
Thesaurus dictionary- Wordloop#3

Thesaurus dictionary- Wordloop by LEAP STUDIO

Synonyms power up vocabulary
Worth Considering
🔍 Reference
4.5(258 ratings)
FreeIn-App Purchases
Thesaurus dictionary- Wordloop screenshot 1
Thesaurus dictionary- Wordloop screenshot 2
Thesaurus dictionary- Wordloop screenshot 3
Thesaurus dictionary- Wordloop screenshot 4
Thesaurus dictionary- Wordloop screenshot 5
Thesaurus dictionary- Wordloop screenshot 6

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.

More Merriam Webster Thesaurus apps to explore

4
Dictionary.com: English Words
Dictionary.com: English Words
Dictionary.com: English Words
Dictionary, Thesaurus, Vocab
Free

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.

2 million+ definitions and synonymsWord of the DayExample sentences
🔍 Reference
(328K)
free with in-app purchases
5
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Premium Ad-free Dictionary
$9.99

Access America's leading dictionary with over 15,000 extra entries for people and places. Enjoy offline access, voice search, and daily vocabulary builders. This app offers expert word guidance with a thesaurus and example sentences.

Ad-free experience15,000+ premium entriesOffline dictionary access
🔍 Reference
(22K)
freemium
6
Power Thesaurus
Power Thesaurus
Power Thesaurus
Comprehensive. Fast. Reliable.
Free

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.

Ad-free PRO MembershipIntuitive navigationSmart filters
🔍 Reference
(2.9K)
freemium
7
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
8
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
9
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
10
Etymonline English Dictionary
Etymonline English Dictionary
Etymonline English Dictionary
Dictionary to Build Vocabulary
Free

Explore the origins and history of English words with this comprehensive dictionary app. It offers instant search, related word suggestions, and an offline mode for premium users. Enhance your vocabulary and understanding of word roots.

Word origin explorationInstant search with suggestionsRelated words by root
📚 Education
(11K)
free with in-app purchases
11
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
12
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
(267)
free
13
Pocket Thesaurus
Pocket Thesaurus
Pocket Thesaurus
The Ultimate Offline Thesaurus
Free

Expand your vocabulary and master the English language with this offline thesaurus. Quickly find synonyms and antonyms, explore word definitions, and enhance your writing and communication skills. Features include daily word challenges and advanced search options.

Extensive offline access to 90,000+ wordsFast and efficient synonym/antonym searchWord of the Day/Week from GRE list
🔍 Reference
(380)
free with in-app purchases
14
RhymeZone
RhymeZone
RhymeZone
The official RhymeZone app!
$2.99

This app is a powerful rhyming dictionary and thesaurus that helps you find the perfect word. It offers rhymes, synonyms, antonyms, and related words, with offline capabilities and an optional online connection for more features. A unique "Poet Maker" helps find words matching both rhyme and meaning.

Rhyming dictionaryThesaurusSynonyms and antonyms
🔍 Reference
(981)
free
15
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
(351)
paid
16
LookUp: English Dictionary App
LookUp: English Dictionary App
LookUp: English Dictionary App
Vocabulary Builder & Thesaurus
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
17
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
18
Chambers Thesaurus
Chambers Thesaurus
Chambers Thesaurus
Offline English thesaurus
$4.99

This offline English thesaurus offers a vast collection of synonyms and antonyms for writers and language enthusiasts. It features intelligent word entry with spelling suggestions and advanced search capabilities, all accessible without an internet connection.

Nearly 40,000 indexed words400,000 synonyms and antonymsIntelligent spelling suggestions
🔍 Reference
(11)
paid
19
Advanced English Dictionary.
Advanced English Dictionary.
Advanced English Dictionary.
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers offline access to millions of words, definitions, pronunciations, and etymologies. Explore word connections, sample sentences, and discover new vocabulary with advanced search and unique features.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(238)
paid
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

FAQ about Merriam Webster Thesaurus

What are the best merriam webster thesaurus apps for iPhone?
Merriam-Webster Dictionary tops our merriam webster thesaurus apps ranking as of July 2026, with a 4.8-star average from 323K App Store ratings, and it's free to download.
Yes — 12 of the top merriam webster thesaurus apps we rank are free to download, including Merriam-Webster Dictionary and Oxford Dictionary & Thesaurus.
Merriam-Webster Dictionary shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 158+ merriam webster thesaurus apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides access to America's most respected dictionary, continuously updated with new words and meanings. It's designed for English language reference, education, and vocabulary building, offering features like offline access, voice search, and a thesaurus.
Key features include offline access to definitions and synonyms, voice search, a daily 'Word of the Day,' word games for vocabulary testing, favorite word tracking, and an integrated thesaurus with over 200,000 word choices. It also offers audio pronunciations by real English speakers.