sce·nar·i·o / səˈne(ə)rēˌō; -ˈnär-/ • n. (pl. -os) a written outline of a movie, novel, or stage work giving details of the plot and individual scenes: imagine the scenarios for four short stories. ∎  a postulated sequence or development of events: a possible scenario is that he was attacked after opening the front door. ∎  a setting, in particular for a work of art or literature: the scenario is World War II.

scenario outline of the plot of a play. XIX. — It., f. scena SCENE; anglicized as †scenary XVII.