the quality of being expedite; efficient promptness; haste; dispatch; speed; quickness; as to carry the mail with expedition.-a sending forth or setting forth the execution of some object of consequence; progress.-an important enterprise, implying a change of place; especially, a warlike enterprise; a march or a voyage with martial intentions; an excursion by a body of persons for a valuable end; as, a military, naval, exploring, or scientific expedition; also, the body of persons making such excursion.