Overview
Words API gives you instant access to definitions, synonyms, antonyms, examples, and more for over 150,000 English words via a simple REST interface. You can look up a word and retrieve rich linguistic data in a single GET request. It is a great tool for building vocabulary apps, writing assistants, or educational tools.
Beginner Tip
Start with a simple word lookup like GET /words/{word} to retrieve definitions and synonyms — no complex setup needed beyond your API key in the X-RapidAPI-Key header.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"word": "serendipity",
"phonetic": "/ˌsɛr.ənˈdɪp.ɪ.ti/",
"meanings": [
{
"partOfSpeech": "noun",
"definition": "The occurrence of events by chance in a happy way"
}
],
"synonyms": [
"luck",
"fortune",
"chance"
]
} Field Reference
word The word that was looked up. results Array of result objects, each containing a definition and related data. results[].definition A single definition of the word. results[].partOfSpeech Grammatical category such as noun, verb, or adjective. results[].synonyms List of synonyms for this particular meaning of the word. results[].examples Example sentences illustrating how the word is used in context. Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://wordsapiv1.p.rapidapi.com/words/fantastic";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
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