An API for the English Language.

Find definitions, related words, and more, with a simple to use RESTful API.

Words API is Dictionary

Use it to find definitions for more than 150,000 words. Try some:

A Thesaurus

You can find synonyms, antonyms, or similar words. Try some:

And Much, Much More

Words API includes hierarchical information, such as knowing that:

Try It

Enter a word to lookup and what you want the API to return.

Monthly Pricing Plans

Account billing and access are handled by RapidAPI.

2,500 requests per Day
25,000 Requests per Day
250,000 Requests per day
500,000 Requests per day