twenties noun 3adjective 1 noun[plural only]3 •The range between 20 and 29.She shivered; twenties by the water felt different than twenties in the mountains. •The decade of one's life from age 20 through age 29.The waiter was in his twenties. •The third decade of a century: the 1820s, 1920s, 2020s, etc.My roommates said they were hosting a party inspired by the twenties which I assumed meant the 1920s but it turned out the theme was the 1120s BCE. adjective1 •From or evoking the 21st through 30th years of a century (chiefly the 1920s).That bob haircut makes you look so twenties.
