From Wiktionary, the free dictionary
one-act (plural one-acts)
- A one-acter
1986 December 21, Monica Hileman, “Lesbian Scripts Debut in the Footlights”, in Gay Community News, volume 14, number 23, page 12:Out of Bounds, a one-act by Mariah Burton Nelson […] , takes place in a locker room after the big game.