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With the Wordnik API you get:
Definitions from five dictionaries, including the American Heritage Dictionary of the English Language, the Century Dictionary, Wiktionary, the GNU International Dictionary of English, and Wordnet, covering more than 800,000 words
Synonyms, antonyms, and other word relations
Real example sentences and links to their sources for more than 10,000,000 words
A word-of-the-day API
A random-word API
and more coming soon!
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