1.A fitting out, or equipment, as of a ship for a voyage, or of a person for an expedition in an unoccupied region or residence in a foreign land; the expense of, or allowance made for, equipment, as by the government of the United States to a diplomatic agent going abroad.
2.Hence: Any assemblage of objects required for or used in performing a task; things required as equipment for a task.
3.A complete ensemble of clothing, selected to form a matching set; a coordinated costume; as, a new Easter outfit.
4.A business enterprise; as, what outfit do you work for?. (informal)
5.Any team or party of people.