Meaning of “forties” in the English Dictionary

british dictionary

"forties" in British English

See all translations

fortiesnoun [ plural ]

uk /ˈfɔː.tiz/ us /ˈfɔːr.t̬iz/

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

"forties" in American English

See all translations

fortiesplural noun

also 40s, 40’s us /ˈfɔr·t̬iz/

the numbers 40 through 49:

The temperature will be in the forties (= between 40° and 49°) today.
Our house was built in the forties (= between 1940 and 1949).
They are both in their forties (= between 40 and 49 years old).

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