(US, law and law enforcement) a physical or photographic queue of people allegedly involved in a crime, allowing a witness to identify them

(Canada) A line of people or vehicles, in which the individual at the front end is dealt with first, the one behind is dealt with next, and so on, and in which newcomers join at the end; a queue.

(sports) Collectively, the members of a team.

(baseball) The batting order.

(music) The members of a music group at any one time.

(music) The acts performing at a concert or music festival.