- Clear and accurate definitions from top dictionaries, both online and offline
- Free Thesaurus with a simple interface to find synonyms, antonyms, and related words
- Word of the Day, Idiom of the Day, and other daily content to learn something new every day
- Audio pronunciations, example sentences, etymologies, and more to help build your vocabulary
- Multiple specialty dictionaries and encyclopedias, including Medical, Legal, Science, Financial, Idioms and Slang, Acronyms and Abbreviations, and more
- Spelling Bee, Hangman, and other word games to play
- Idioms videos inside the app to see idioms in action
- Access to dictionaries in 13 other languages, including Spanish, French, German, Italian, Portuguese, Russian, Chinese, and more
- Translation of English into Spanish, French, and 40+ languages, and vice versa
- Access to dictionaries and encyclopedias from top publishers with just one search
- Instantly look up words in apps or webpages by highlighting the word and tapping "Define"
- Voice search to look up a word just by saying it
- Advanced Search options
- Save bookmarks with one tap and sync them to all your devices
- Customize your homepage by moving, adding, or removing articles, games, and local weather
- Jump to Definition, Thesaurus, or Translations with one button
- Multilingual interface to navigate the app in more than a dozen languages
- Adjustable font size
- Share your favorite words via social networks, email, or text
- Earn meals for hungry children through The Free Dictionary's partnership with the World Food Program by using the app.