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Best Mono Dictionary Apps

238+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated July 2026

With an average user rating of 4.7★, the mono dictionary category is one of the App Store's strongest. Browse all 238+ apps we track, sorted so the most loved ones surface first.

Compare top Mono Dictionary Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoJul 2026
2Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (323K)YesYesJul 2026
3Dictionary.Dictionary.Free4.8★ (14K)YesYesJul 2026
4Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (28K)NoYesJul 2026
5Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)NoNoJul 2026
6Dictionary Offline - Dict BoxDictionary Offline - Dict BoxFree4.6★ (11K)YesYesJul 2026
7WordWeb DictionaryWordWeb DictionaryFree4.6★ (267)NoNoJul 2026
8Vietnamese Dictionary PEnglishVietnamese Dictionary PEnglishFree4.5★ (18K)YesYesJul 2026

Top Picks for Mono 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
Merriam-Webster Dictionary#2

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Strong Contender
🔍 Reference
4.8😊(323K ratings)
FreeAdsIn-App Purchases
#34in 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
Dictionary.#3

Dictionary. by Farlex, Inc.

by TheFreeDictionary.com
Worth Considering
🔍 Reference
4.8😊(14K 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

More Mono Dictionary apps to explore

4
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
(28K)
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
Dictionary Offline - Dict Box
Dictionary Offline - Dict Box
Dictionary Offline - Dict Box
Dictionary for All Languages
Free

This app provides an offline dictionary and translator for over 50 languages. It offers smart word suggestions, text translation in other apps, offline pronunciation, and a picture dictionary. An optional premium upgrade unlocks advanced features and an ad-free experience.

Offline dictionary & translator50+ languages supportedSmart word suggestions
🔍 Reference
(11K)
free with in-app purchases
7
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
8
Vietnamese Dictionary PEnglish
Vietnamese Dictionary PEnglish
Vietnamese Dictionary PEnglish
English Vietnamese Dictionary
Free

This comprehensive app offers an offline English-Vietnamese dictionary with extensive word explanations and sentence translation. It also provides tools for vocabulary learning, exam preparation, and practicing all four language skills through games, videos, and grammar lessons.

Offline English-Vietnamese dictionaryVocabulary learning with gamesExam preparation and mock tests
📚 Education
(18K)
free with in-app purchases
9
Vietnamese Dictionary Dict Box
Vietnamese Dictionary Dict Box
Vietnamese Dictionary Dict Box
Engish Vietnamese Translator
Free

This app serves as a comprehensive offline Vietnamese-English dictionary and translator. It offers text translation, word suggestions, pronunciation guides, and a picture dictionary to enhance language learning and communication.

Offline dictionary and translatorText translation for sentences and paragraphsIntelligent word suggestions
🔍 Reference
(18K)
free with in-app purchases
10
Dictionary Linguee
Dictionary Linguee
Dictionary Linguee
German, French, Spanish, more
Free

Access reliable translations for multiple languages, including French, Spanish, and German, with this comprehensive dictionary app. It offers fast, offline access to a vast database compiled by lexicographers and includes example sentences and audio pronunciations.

Translations in French, Spanish, German, and moreCompiled by over 400 lexicographersFast translations with quick search
🔍 Reference
(11K)
free
11
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
12
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
13
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
14
Sesli Sozluk Dictionary
Sesli Sozluk Dictionary
Sesli Sozluk Dictionary
by Sesli Sozluk Ltd.
Free

This comprehensive dictionary app offers a vast database of 20 million words across 20 languages, complete with pronunciations, images, and videos. Enhance your vocabulary with interactive language games and access translation services. It provides both online and offline functionality for convenient learning.

20 million word database20 language supportAudio pronunciations
🔍 Reference
(9.9K)
free with in-app purchases
15
Persian Dictionary - Dict Box
Persian Dictionary - Dict Box
Persian Dictionary - Dict Box
دیکشنری انگلیسی به فارسی
Free

This offline dictionary and translator app facilitates Persian-English language learning and communication. It offers fast, convenient translations, smart word suggestions, and text pronunciation without an internet connection. Advanced features like a picture dictionary and cross-device sync are available with a premium upgrade.

Offline English to Farsi translationOffline Farsi to English translationSmart word suggestions
🔍 Reference
(86K)
free with in-app purchases
16
KTdict Chinese Dictionary
KTdict Chinese Dictionary
KTdict Chinese Dictionary
OCR, Flashcards, Trainer
Free

This comprehensive Chinese dictionary app offers effortless learning with extensive search capabilities, an interactive reader, and OCR technology. It includes dynamic flashcards and a Leitner system trainer to enhance vocabulary and retention. Enjoy seamless integration across Apple devices with a single in-app purchase for full access.

Comprehensive dictionary with 300,000+ entriesSearch in English, German, French, Chinese characters, or PinyiniOS handwriting and voice input
🔍 Reference
(1.2K)
free with in-app purchases
17
Bengali Dictionary: Translator
Bengali Dictionary: Translator
Bengali Dictionary: Translator
English to Bengali Dictionary
Free

Translate English to Bengali and vice-versa with this comprehensive dictionary and translator app. Features offline dictionary access, voice search, word quizzes, and multi-language translation. Save and share your translations easily.

Offline English to Bengali dictionaryEnglish to Bengali translatorVoice search for words
📚 Education
(1.2K)
free with in-app purchases
18
WordReference Dictionary
WordReference Dictionary
WordReference Dictionary
by WordReference.com, LLC
Free

Access a comprehensive suite of dictionaries and translation tools for multiple languages. Explore conjugations, synonyms, and a vast forum with millions of answered questions. This app provides quick access to extensive language resources.

Extensive multilingual dictionariesVerb conjugatorsSynonym finder
🔍 Reference
(5)
ad-supported
19
Arabic Dictionary - Dict Box
Arabic Dictionary - Dict Box
Arabic Dictionary - Dict Box
قاموس انكليزي عربي
Free

This app provides offline English-Arabic and Arabic-English translation and dictionary services. It offers smart word suggestions, text pronunciation, and the ability to translate text within other applications. An optional premium version unlocks advanced features and an ad-free experience.

Offline English-Arabic translationOffline Arabic-English translationSmart word suggestions
🔍 Reference
(28K)
freemium
20
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

FAQ about Mono Dictionary

What are the best mono dictionary apps for iPhone?
Dictionary.com: English Words tops our mono dictionary apps ranking as of July 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Yes — 18 of the top mono dictionary apps we rank are free to download, including Dictionary.com: English Words and Merriam-Webster Dictionary.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 238+ mono dictionary apps on the iOS App Store as of July 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.