Words
Definitions and synonyms for more than 150,000 words
- Authentication
- API Key
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Dictionaries
- Data source
- public-apis + marcelscruz
- Documentation / URL
- https://www.wordsapi.com/docs/
Overview
Words API provides definitions, synonyms, antonyms, and examples — powered by the WordNet dataset. Auth is a free API key.
⚠️ Status (verified 2026-08):
api.wordsapi.comwas unreachable from our network (TLS connection failures). This may reflect regional/network blocking — verify from your network before relying on it.
What it provides
curl "https://api.wordsapi.com/v1/words/hello" \
-H "X-RapidAPI-Key: YOUR_KEY"{
"word": "hello",
"results": [
{ "definition": "an expression of greeting", "partOfSpeech": "noun", "synonyms": ["hi", "howdy"] }
]
}Notes
- The API is distributed via RapidAPI — get a key from the RapidAPI page.
- Auth:
X-RapidAPI-Keyheader. - Data is WordNet-derived (definitions, synonyms, antonyms, examples, syllables, frequency).
FAQ
Is Words API free? Free RapidAPI tier with a monthly allowance; more is paid.
Why can’t I reach it? Our 2026-08 check hit TLS failures — verify from your network.
How do I get a key? RapidAPI → subscribe to the Words API.
More in Dictionaries
| API | Auth | HTTPS | CORS | |
|---|---|---|---|---|
| Chinese Character Web Chinese character definitions and pronunciations | No auth | No | No | ↗ |
| Chinese Text Project Online open-access digital library for pre-modern Chinese texts | No auth | Yes | Unknown | ↗ |
| Collins Bilingual Dictionary and Thesaurus Data | API Key | Yes | Unknown | ↗ |
| Free Dictionary Definitions, phonetics, pronounciations, parts of speech, examples, synonyms | No auth | Yes | Unknown | ↗ |
| Indonesia Dictionary Indonesia dictionary many words | No auth | Yes | Unknown | ↗ |