Best Idioms And Slang Dictionaries Apps

191+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated June 2026

With an average user rating of 4.3★, the idioms and slang dictionaries category is one of the App Store's strongest. Browse all 191+ apps we track, sorted so the most loved ones surface first.

Compare top Idioms And Slang Dictionaries Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoJul 2026
2Idioms and Slang DictionaryIdioms and Slang DictionaryFree4.7★ (1K)YesYesJul 2026
3English Idioms and SlangsEnglish Idioms and SlangsFree4.7★ (39)YesNoJul 2026
4English language: Learn & PlayEnglish language: Learn & PlayFree4.6★ (7.6K)YesYesJul 2026
5Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (320K)YesYesJul 2026
6English Slangs and IdiomsEnglish Slangs and IdiomsFreeYesYesMay 2026
7Urban Dictionary - Daily SlangUrban Dictionary - Daily SlangFree3.2★ (17)YesYesJul 2026
8Dictionary.Dictionary.Free4.8★ (14K)YesYesJul 2026

Top Picks for Idioms And Slang Dictionaries

Dictionary.com: English Words#1

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

Dictionary, Thesaurus, Vocab
Editor's Choice
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
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Dictionary.com: English Words screenshot 3
Dictionary.com: English Words screenshot 4
Dictionary.com: English Words screenshot 5
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
Idioms and Slang Dictionary#2

Idioms and Slang Dictionary by Farlex, Inc.

Phrase meanings and history
Strong Contender
🔍 Reference
4.7😊(1K ratings)
FreeAdsIn-App Purchases
Idioms and Slang Dictionary screenshot 1
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Idioms and Slang Dictionary screenshot 5

Explore the meanings and origins of over 61,000 idioms, slang terms, proverbs, and expressions. Understand conversational English like a native speaker with definitions, historical context, and example sentences.

What We Love

  • 👍 Simple design, easy to use
  • 🚀 Accurate results
  • 👍 Useful for understanding idioms
  • 👍 Helpful for non-native English speakers

Room to Improve

  • 🐛 Impossible to read text due to background issues
  • 🐛 Ads still show up despite paid subscription
  • 🔧 Needs more advanced features like translations, audio, and contextual information
English Idioms and Slangs#3

English Idioms and Slangs by Reev Tech Inc.

500+ Native English Idioms
Worth Considering
📚 Education
4.7(39 ratings)
FreeAds
English Idioms and Slangs screenshot 1
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English Idioms and Slangs screenshot 5

Master English idioms and phrases with over 1,300 essential entries. Features personalized flashcards, audio pronunciation, and progress tracking for effective, on-the-go learning. Study offline with customizable reminders and dark mode.

More Idioms And Slang Dictionaries apps to explore

4
English language: Learn & Play
English language: Learn & Play
English language: Learn & Play
№1 Phrases and Idioms App
Free

Master English idioms, phrases, and slang through engaging games and quizzes. This app helps you understand and memorize vocabulary using spaced repetition, improving your fluency and confidence in communication.

Learn over 1,000 idioms and phrasesStudy 50+ topicsInteractive games and quizzes
📚 Education
(7.6K)
subscription
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
English Slangs and Idioms
English Slangs and Idioms
English Slangs and Idioms
English slangs/idioms offline.
Free
🔍 Reference
(0)
7
Urban Dictionary - Daily Slang
Urban Dictionary - Daily Slang
Urban Dictionary - Daily Slang
Slang & Internet Language
Free

Explore modern slang, internet expressions, and everyday sayings with clear definitions and real examples. Stay fluent in contemporary language and understand online culture.

Search slang words and expressionsDiscover trending slang dailySimple definitions
🌟 Lifestyle
(17)
free with in-app purchases
8
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
9
English Idioms Illustrated
English Idioms Illustrated
English Idioms Illustrated
by Aidan Potts
Free

Explore the fascinating origins and meanings of hundreds of English idioms through engaging illustrations. Learn about the history behind phrases like "Achilles’ heel" and "Wrong side of bed" with Professor Potts. Expand your vocabulary and understanding of idiomatic expressions.

Illustrated idiom explanationsOrigin stories of phrasesHundreds of idioms covered
📚 Education
(10)
free with in-app purchases
10
British Slang! New Dictionary of Urban Slangs Quiz
British Slang! New Dictionary of Urban Slangs Quiz
British Slang! New Dictionary of Urban Slangs Quiz
by Michael Quach
Free

Explore a vast collection of British slang words and phrases. Discover meanings, save your favorites, and easily share them through various platforms like email, SMS, and social media.

Extensive British slang vocabularyReveal slang meaningsSave favorite slang
📚 Books
(48)
free with in-app purchases
11
Urban Dictionary
Urban Dictionary
Urban Dictionary
by Urban Dictionary LLC
Free

Access a vast collection of user-submitted definitions for slang and non-slang words. Search, vote on definitions, and discover new words with daily updates. Share interesting terms easily with friends.

Unlimited free searchesSlang and non-slang definitionsVote on definitions
🔍 Reference
(3.5K)
free
12
American Slang Colloquialism!
American Slang Colloquialism!
American Slang Colloquialism!
Urban Dictionary Slangs Quiz!
Free

Explore a vast collection of American slang terms and expressions. This app provides definitions for urban dictionary slangs and allows you to save, share, and discover new colloquialisms. It's designed for entertainment and learning.

Learn American SlangView Slang DefinitionsSave Favorite Slang
📚 Books
(42)
free with in-app purchases
13
English Idioms Cards
English Idioms Cards
English Idioms Cards
All common idioms in one app
Free

Master English idioms with over 1000 flashcards. Each card features an idiom, its meaning, example sentences, and pronunciation. Learn visually and audibly in an offline, ad-free environment.

1000 idiom flashcardsIdiom meanings and examplesVisual learning aids
📚 Education
(873)
free with in-app purchases
14
English idioms in use
English idioms in use
English idioms in use
All English Idioms & Phrases
Free

Learn English idioms and phrases with over 200 common expressions. Practice your understanding through quizzes and exercises, and utilize tools like text-to-speech and translation to enhance your learning experience.

200+ common English idiomsIdioms and phrases dictionaryQuizzes and tests for idioms and phrasal verbs
📚 Education
(257)
free
15
Idioms & Phrases (English)
Idioms & Phrases (English)
Idioms & Phrases (English)
most useful idioms & phrases
Free

Master thousands of common English idioms and phrases with this free application. Browse, search, and learn popular expressions categorized for easy understanding. Includes a viewer with speaking and auto-play features for an enhanced learning experience.

Thousands of idioms and phrasesBrowse and search functionalityCategorized idiom lists
📚 Education
(65)
free with in-app purchases
16
Idioms English Dictionary
Idioms English Dictionary
Idioms English Dictionary
Listen sound and work offline
Free

This free reference app provides a comprehensive dictionary of English idioms with audio pronunciations. It allows offline access, customizable voice settings, and advanced search functionalities to help users understand and learn idiomatic expressions.

8,500 English idiomsAudio pronunciation for each idiomOffline functionality
🔍 Reference
(29)
free
17
Vietnamese best dict
Vietnamese best dict
Vietnamese best dict
by Thanh Nguyen Van
Free

This Vietnamese-English dictionary offers a vast vocabulary with detailed word descriptions and numerous examples. It features a simple, high-performance interface and provides full pronunciation support for both English and Vietnamese, aiding language learning.

Largest vocabularyDetailed word descriptionsNumerous examples
📚 Education
(440)
free with in-app purchases
18
Spanish English best dictionary
Spanish English best dictionary
Spanish English best dictionary
by Thanh Nguyen Van
Free

This comprehensive dictionary offers a vast vocabulary for Spanish and English, with detailed word descriptions and numerous examples. Its user-friendly interface and high performance ensure a smooth experience, while native speaker pronunciations aid language learning. It functions offline for core features but requires internet for pronunciation and web browsing.

Largest vocabularyDetailed word descriptionsNumerous examples
📚 Education
(122)
free with in-app purchases
19
English Slang Cards
English Slang Cards
English Slang Cards
All common slang in one app
Free

Learn common American and British slang with 500 flashcards. Each card includes the slang word, its meaning, an example sentence, a visual aid, and correct pronunciation. Expand your vocabulary and understand casual English conversations.

500 slang flashcardsAmerican and British slangExample sentences
📚 Education
(218)
free with in-app purchases
20
Australian Slang: Urban Aussie Slang Dictionary
Australian Slang: Urban Aussie Slang Dictionary
Australian Slang: Urban Aussie Slang Dictionary
by Michael Quach
Free

Explore a vast collection of Australian slang words and phrases. This app helps you learn and use colorful Aussie sayings, perfect for travelers or anyone interested in Australian culture. Save your favorites and easily share them with friends.

Hundreds of slang words & phrasesSave favorite slangShare slang via email
📚 Books
(21)
free with in-app purchases

FAQ about Idioms And Slang Dictionaries

What are the best idioms and slang dictionaries apps for iPhone?
Dictionary.com: English Words tops our idioms and slang dictionaries apps ranking as of June 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Yes — 20 of the top idioms and slang dictionaries apps we rank are free to download, including Dictionary.com: English Words and Idioms and Slang Dictionary.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 191+ idioms and slang dictionaries apps on the iOS App Store as of June 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.