—n. 1. a braid of hair worn hanging down behind.
2. a file or line, esp. of people waiting their turn.
3. Computers.a FIFO-organized sequence of items, as data, messages, jobs, or the like, waiting for action.
—v.i., v.t. 1. to form in a line while waiting (often fol. by up).
2. Computers.to arrange (data, jobs, messages, etc.) into a queue.