Wordnik
FreemiumLiveLast verified 24 Sept 2026
English word definitions, synonyms, examples and audio pronunciations from five dictionaries.
Example request
curl -s 'https://api.wordnik.com/v4/word.json/hello/definitions?api_key=$API_KEY'
Free tier, in plain English
Free Basic plan gives 100 calls an hour for nonprofit, research or commercial-trial use; paid plans start at $10/month for more volume.
Alternatives in Dictionaries
Chinese Text ProjectFull texts and metadata for pre-modern Chinese philosophy, history and literature works.FreemiumDatamuseFinds words matching meaning, sound, spelling pattern or related-word constraints for language tools.FreeeeemojiLooks up emoji metadata by name: keywords, category, platform shortcodes and skin-tone variants.FreeFree Dictionary APIEnglish word definitions, phonetics, parts of speech, examples and synonyms, no key needed.FreeMerriam-WebsterWord definitions, etymology, audio pronunciation and thesaurus data from Merriam-Webster's reference works.Freemium