n. The state of being freed from impediments; hence, expeditiousness; promptness; haste; speed; quickness; despatch.n. The state of being expedited or put in motion; progress; march.n. An excursion, journey, or voyage made by a company or body of persons for a specific purpose; also, such a body and its whole outfit: as, the expedition of Xerxes into Greece; Wilkes's exploring expedition; a trading expedition to the African coast.n. Synonyms Celerity, nimbleness, alertness.n. Trip, raid.