From Longman Dictionary of Contemporary Englishtwentytwen‧ty /ˈtwenti/ ●●● S2 W2 number, noun 1 HMNthe number 20 a small village twenty miles from Nairobi I’m nearly twenty (=20 years old).2 → the twenties3 → be in your twenties4 → in the twenties5 [countable] a piece of paper money that is worth £20 or $20 I offered the driver a twenty. —twentieth adjective, pronoun in the twentieth century her twentieth birthday I’m planning to leave on the twentieth (=the 20th day of the month).
Examples from the Corpus
twenty• Since most of the male students were in their mid to late twenties, spouse hunting for them was a major preoccupation.Origin twenty Old English twentig 