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Best Free Vocabulary Dictionary Apps

242+ iOS apps curated and reviewed

4.5 avg rating
17 free apps
Updated August 2026

Whether you're new to free vocabulary dictionary or looking for an upgrade, our curated collection of 242+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Free Vocabulary Dictionary Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoAug 2026
2Dictionary.Dictionary.Free4.8★ (15K)YesYesAug 2026
3Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026
4English Dictionary *English Dictionary *Free4.6★ (1.2K)NoYesAug 2026
5Advanced English Dictionary.Advanced English Dictionary.$2.994.7★ (241)NoNoAug 2026
6Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesAug 2026
7Etymonline English DictionaryEtymonline English DictionaryFree4.9★ (11K)YesYesAug 2026
8Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)NoNoAug 2026

Top Picks for Free Vocabulary Dictionary

Dictionary.com: English Words#1

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Editor's Choice
🔍 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
Dictionary.com: English Words screenshot 4
Dictionary.com: English Words screenshot 5

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
Dictionary.#2

Dictionary. by Farlex, Inc.

by TheFreeDictionary.com
Strong Contender
🔍 Reference
4.8😊(15K ratings)
FreeAdsIn-App Purchases
Dictionary. screenshot 1
Dictionary. screenshot 2
Dictionary. screenshot 3
Dictionary. screenshot 4
Dictionary. screenshot 5

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.

What We Love

  • 🚀 Comprehensive and detailed definitions
  • 👍 Helpful thesaurus and translation features
  • 🎮 Fun word games and activities
  • 📚 Vast amount of information beyond just definitions

Room to Improve

  • 🔍 Cluttered interface with too many ads
  • 🐛 Occasional crashes and bugs
  • 🔍 Difficulty finding specific settings or features
Merriam-Webster Dictionary#3

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Worth Considering
🔍 Reference
4.8😊(324K ratings)
FreeAdsIn-App Purchases
#32in 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

More Free Vocabulary Dictionary apps to explore

4
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
(1.2K)
subscription
5
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
(241)
paid
6
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Etymology & 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
(29K)
free with in-app purchases
7
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
8
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
9
Dictionary
Dictionary
Dictionary
in Widget
Free

Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.

Home Screen widget for instant lookupsNo app launch requiredQuick definitions
🔍 Reference
(5)
ad-supported
10
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
(282)
free with in-app purchases
11
Dictionary - Word Search Lex
Dictionary - Word Search Lex
Dictionary - Word Search Lex
Dictionary for normal Language
Free

Access a professional multilingual dictionary for English, Japanese, and Korean. Get detailed definitions, pronunciations, and example sentences. Save your search history and favorites for offline language learning.

Multilingual definitionsPronunciations and examplesAuto-save history
🔧 Utilities
(1)
ad-supported
12
English Dictionary - Offline & FREE
English Dictionary - Offline & FREE
English Dictionary - Offline & FREE
by Thi Vo
Free
📚 Education
(0)
13
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
(112)
free with in-app purchases
14
Lngo: The People's Dictionary
Lngo: The People's Dictionary
Lngo: The People's Dictionary
English Dictionary & Thesaurus
Free
$2.99 | 100% OFF

Access over 250,000 definitions, pronunciations, and etymologies offline. Enhance your vocabulary with extensive synonym and antonym searches, and study tools like flashcards for standardized tests.

Over 250,000 definitionsOffline dictionary accessExtensive synonym and antonym search
📚 Education
(25)
free
15
Widget Vocabulary: Learn Words
Widget Vocabulary: Learn Words
Widget Vocabulary: Learn Words
Easy & Fast English Learning
Free

Learn new words daily directly from your Lock and Home Screens without dedicated study sessions. This app offers customizable widgets, flashcards with meanings and examples, and quizzes to test your knowledge. It supports various languages and exam-specific vocabulary packs.

Lock screen vocabulary learningCustomizable home screen widgetsThousands of flashcards
📚 Education
(207)
free with in-app purchases
16
English Dictionary 2.0
English Dictionary 2.0
English Dictionary 2.0
Fast and offline dictionary
Free
📚 Education
(0)
17
Advanced English Dictionary HD
Advanced English Dictionary HD
Advanced English Dictionary HD
English Dictionary & Thesaurus
$3.99

Access a vast English dictionary and thesaurus with millions of words, definitions, and pronunciations. Explore word origins, sample sentences, and discover connections with a unique conceptual thesaurus. Enjoy offline access and an ad-free experience.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(59)
paid
18
Cam Dictionary: Learn English
Cam Dictionary: Learn English
Cam Dictionary: Learn English
tap or type word for meaning
Free

Instantly find word meanings by tapping them with your camera or using voice input. This app leverages OCR technology to quickly search definitions via Google, saving you the effort of typing.

Camera-based word lookupOCR for text recognitionVoice dictation search
📚 Education
(7)
free
19
English Dictionary : Offline
English Dictionary : Offline
English Dictionary : Offline
English to English Vocabulary
Free

Access a comprehensive English to English dictionary with over 150,000 words and their meanings, all available offline. Test your vocabulary with interactive quizzes and save favorite words. Features include speech-to-text, text-to-speech, and word sharing.

Offline English to English dictionary150,000+ words and meaningsVocabulary quizzes
📚 Education
(587)
free with in-app purchases
20
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

FAQ about Free Vocabulary Dictionary

What are the best free vocabulary dictionary apps for iPhone?
Dictionary.com: English Words tops our free vocabulary dictionary apps ranking as of August 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 242+ free vocabulary dictionary apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app serves as a comprehensive English dictionary and thesaurus, offering over 2 million trusted definitions and synonyms. It aims to help users improve their English vocabulary, understanding, and writing skills through various features.
Key features include access to millions of definitions and synonyms, a 'Word of the Day' to expand vocabulary, example sentences to show word usage, audio pronunciations, grammar tips, and a search history to track learned words.