Definition of “thirties” - English Dictionary


“thirties” in English

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thirtiesnoun [ plural ]

uk /ˈθɜː.tiz/ us /ˈθɝː.t̬iz/

(Definition of “thirties” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“thirties” in American English

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thirtiesplural noun

also 30s, 30’s us /ˈθɜr·t̬iz/

the numbers 30 through 39:

My sisters are in their thirties (= between 30 and 39 years old).
The temperature is expected to be in the thirties (= between 30° and 39°) tomorrow.
These dresses were fashionable in the thirties (= between 1930 and 1939).

(Definition of “thirties” from the Cambridge Academic Content Dictionary © Cambridge University Press)