forties

English Thesaurus

1. the time of life between 40 and 50 (noun.time)

hypernym	:	time of life,
definition	:	a period of time during which a person is normally in a particular life state (noun.time)

part meronym	:	adulthood, maturity,
definition	:	the period of time in your life after your physical growth has stopped and you are fully developed (noun.time)

2. the decade from 1940 to 1949 (noun.time)

hypernym	:	decade, decennary, decennium,
definition	:	a period of 10 years (noun.time)