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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 | definition in the Cambridge English Dictionary

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

  3. Thirty - definition of thirty by The Free Dictionary

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

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

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

  5. 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 …

  6. THIRTY Definition & Meaning | Dictionary.com

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

  7. 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, …

  8. 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: …

  9. About The Number 30 - Numeraly

    Fun and interesting facts about the number 30 Thirty is a pronic number, meaning it is the product of two consecutive integers, specifically, 5 and 6. It is also a Harshad number, which means it …

  10. THIRTY | meaning - Cambridge Learner's Dictionary

    THIRTY definition: 1. the number 30 2. the years from 1930 to 1939 3. to be between the ages of 30 and 39. Learn more.