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Synonyms

Dictionaries

Synonyms, thesaurus and antonyms information for any given word.

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About Synonyms

The Synonyms API, provided by STANDS4 as part of its Web Services suite, gives programmatic access to synonym, thesaurus, and antonym data for a given word. Requests are made via a URL with parameters for a user ID, developer token, and target word, and the service returns results in XML or JSON format. Each result includes the queried term, a definition, its part of speech, and comma-delimited lists of synonyms and antonyms.

It is intended for developers who want to integrate word-reference data, such as synonym or antonym lookups, into applications. The service is free to use for up to 100 queries per day, with a premium commercial license available by contacting the provider.

Key features

  • Returns synonyms and antonyms for a given word
  • Provides word definitions and part of speech for each sense
  • Supports XML or JSON response formats
  • Simple query via uid, tokenid, and word parameters

Frequently asked questions

Is there a free tier?

Yes, the Synonyms API is free to use for up to 100 queries per day.

What if I need more than the free quota?

A premium commercial license is available by contacting STANDS4.

What response formats are supported?

The API returns results in either XML or JSON, selectable via the format parameter.

What data does the API return for a word?

Each result includes the term, a definition, part of speech, and comma-delimited lists of synonyms and antonyms.

How do I authenticate requests?

Requests require a uid (user id) and tokenid (developer token) passed as parameters.

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