Bedeutung von “forties” im Essential American English Dictionary

forties

plural noun us /ˈfɔr.t̬iz/
the forties

the years from 1940 to 1949:

My family left India in the forties.
be in your forties

to be aged between 40 and 49:

She’s probably in her early forties.

(Definition von “forties” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)