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  1. THIRTY Definition & Meaning - Merriam-Webster

    The meaning of THIRTY is a number equal to three times 10. How to use thirty in a sentence.

  2. THIRTY | English meaning - Cambridge Dictionary

    SMART Vocabulary: related words and phrases (Definition of thirty from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

  3. 30 (number) - Wikipedia

    30 is an even, composite, and pronic number. With 2, 3, and 5 as its prime factors, it is a regular number and the first sphenic number, the smallest of the form , where r is a prime greater than 3.

  4. thirty - Definition, pictures, pronunciation and usage notes | Oxford ...

    Definition of thirty in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  5. THIRTY Definition & Meaning | Dictionary.com

    THIRTY definition: a cardinal number, 10 times 3. See examples of thirty used in a sentence.

  6. THIRTY definition and meaning | Collins English Dictionary

    When you talk about the thirties, you are referring to numbers between 30 and 39. For example, if you are in your thirties, you are aged between 30 and 39. If the temperature is in the thirties, the …

  7. Thirty - definition of thirty by The Free Dictionary

    2. (also adjective) the last of thirty (people, things etc); the next after the twenty-ninth.

  8. thirty - Wiktionary, the free dictionary

    Sep 23, 2025 · thirty (plural thirties) (slang) A rack of thirty beers. […] instead of thirties [thirty-second commercials], they buy sixties, which cost twice as much. They spend more on filming it than they …

  9. thirty - WordReference.com Dictionary of English

    thirties, the numbers, years, degrees, or the like, from 30 through 39, as in referring to numbered streets, indicating the years of a lifetime or of a century, or referring to degrees of temperature: He works in …

  10. How to Pronounce Thirty? (2 WAYS!) UK/British Vs US/American …

    Learn how to say words in English, French, Spanish, German, Italian, and many other languages with Julien Miquel and his pronunciation tutorials! In the world of words and the diversity of accents...