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Thirty

/ˈθɜːti/

A number equal to three times ten, coming after twenty-nine and before thirty-one

Synonyms:

This word has no antonyms

There are thirty students in my class.My dad turns thirty next month.

Derived from Old English þrītig from Proto-Germanic *þridatig (three tens), akin to Old Frisian thritich, Dutch dertig.

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