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).

The meaning of FORTY is a number equal to four times 10. How to use forty in a sentence. The Spelling of Forty: Usage Guide.

a. A decade or the numbers from 40 to 49: They stopped smoking in their forties. At night the temperature fell into the forties. b. often Forties The decade from 40 to 49 in a century. [Middle …

forties in American English the numbers, years, degrees, or the like, from 40 through 49, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature

Nov 7, 2025 · Adjective forties (not comparable) From or evoking the 41st through 50th years of a century (chiefly the 1940s).

Mar 24, 2024 · "Fourties" is a common misspelling. The correct term is "Forties," referring to numbers or a decade between 40 and 49.

Forties refers to the age range between 40 and 49, usually associated with established adulthood, significant life experiences, and sometimes midlife transitions.

Definitions of forties noun the time of life between 40 and 50 synonyms: mid-forties see more noun the decade from 1940 to 1949

The term 'forties' generally refers to the numbers ranging from 40 to 49, either identified in years, degrees, or any other measuring units. It can also refer to a person’s age when they are between 40 …

forties, the numbers, years, degrees, or the like, from 40 through 49, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature:His office is in the West …