Haste; speed; quickness; dispatch. The mail is conveyed with expedition.

The march of an army, or the voyage of a fleet, to a distant place, for hostile purposes; as the expedition of the French to Egypt; the expedition of Xerxes into Greece.

Any enterprize, undertaking or attempt by a number of persons; or the collective body which undertakes. We say, our government sent an expedition to the Pacific; the expedition has arrived.