forties n 1: the time of life between 40 and 50 [syn: {forties}, {mid- forties}] 2: the decade from 1940 to 1949 [syn: {forties}, {1940s}]
Forties \For"ties\, n. pl. See {Forty}. [1913 Webster]
Forty \For"ty\, n.; pl. {Forties} (-t[i^]z). 1. The sum of four tens; forty units or objects. [1913 Webster] 2. A symbol expressing forty units; as, 40, or xl. [1913 Webster]