WordsAPI

About WordsAPI

Words API provides dictionary and lexical data through a RESTful JSON interface, accessed via RapidAPI with an API key passed as a header. A request for a given word returns definitions grouped by meaning, along with part of speech, syllable count and breakdown, and pronunciation.

Beyond full word lookups, the API supports requesting specific detail types by appending them to the endpoint URL, including synonyms, antonyms, example sentences, and semantic relationships such as hypernyms (typeOf), hyponyms (hasTypes), holonyms (partOf), meronyms (hasParts), and category, region, and usage associations. Additional endpoints cover rhymes, word frequency, and random word retrieval.

The API is suited for developers building applications that need programmatic access to word definitions, relationships, or linguistic metadata, such as dictionary tools, writing aids, or language-learning software.

Key features

• Look up definitions, synonyms, antonyms, and example sentences for a word
• Retrieve semantic relations like hypernyms, hyponyms, meronyms, and holonyms
• Get word pronunciation data
• Get syllable count and breakdown for a word
• Access word rhymes and frequency data
• Retrieve random words via API endpoint

Frequently asked questions