1. equivalent to the sum of six and five; one more than ten; 11: "the room was about eleven feet wide"
▪ eleven years old: "the eldest is only eleven"
▪ eleven o'clock: "she often worked until eleven at night"
▪ a size of garment or other merchandise denoted by eleven.
▪ a group or unit of eleven people or things.
▪ a sports team of eleven players:"at cricket I played in the first eleven"
Word OriginOld Englishendleofon, from the base of one + a second element (probably expressing the sense ‘left over’) occurring also in twelve; of Germanic origin and related to Dutch and German elf.
