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the number 30: twenty-nine, thirty, thirty-one. She got married when she was thirty ( years old ). Fewer examples. There must have been thirty to thirty-five people there. Every thirty minutes or so the flight attendant would wheel the drinks trolley down the aisle. He must be about sixty, whereas his wife looks about thirty.
The meaning of THIRTY is a number equal to three times 10. How to use thirty in a sentence.
30 is a square pyramidal number. 30 is an even, composite, 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. It has an aliquot sum of 42, which is the second sphenic number. It is also:
Thirty definition: a cardinal number, 10 times 3.. See examples of THIRTY used in a sentence.
Definition of thirty in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
thirty. ( ˈθɜːtɪ) n, pl -ties. 1. (Mathematics) the cardinal number that is the product of ten and three. See also number 1. 2. (Mathematics) a numeral, 30, XXX, etc, representing this number. 3. ( plural) the numbers 30–39, esp the 30th to the 39th year of a person's life or of a century.
1. the cardinal number that is the product of ten and three. See also number (sense 1) 2. a numeral, 30, XXX, etc, representing this number. 3. (plural) the numbers 30–39, esp the 30th to the 39th year of a person's life or of a century. 4. the amount or quantity that is three times as big as ten.
thirty meaning: 1. the number 30 2. the years from 1930 to 1939 3. to be between the ages of 30 and 39. Learn more.
thirty /ˈθɜːtɪ/ n ( pl -ties) the cardinal number that is the product of ten and three. See also number. a numeral, 30, XXX, etc, representing this number. ( plural) the numbers 30–39, esp the 30th to the 39th year of a person's life or of a century. the amount or quantity that is three times as big as ten.
noun. thirties. The cardinal number between twenty-nine and thirty-one; 30; XXX. Webster's New World. Similar definitions. A decade or the numbers from 30 to 39. They settled down in their thirties. The temperature fell into the thirties. American Heritage. This number used to signify the end of a dispatch, story, etc., as for a newspaper.
