forties
n. plural-onlyn. the years between 40 and 49 in a person's life or in a century. You use this to talk about someone's age or a specific time in history.
n. the decade between the ages of 40 and 49, or the years from '40 to '49 within a century. Refers to a collective span of time or age.
She is in her late forties and loves her job.
The fashion of the nineteen-forties was heavily influenced by the practical needs of the wartime era.
Many professionals find that their forties represent a peak in their career trajectory, combining significant experience with continued physical and mental energy.
Always used in the plural form; typically preceded by a possessive adjective (her forties) or the definite article (the forties).
He is in his fortyHe is in his fortiesWhen referring to a decade of life, the plural form 'forties' must be used instead of the cardinal number.