expedition /ɛkspəˈdɪʃən/noun 7verb 1forms 3phrases 1 noun7 •a journey, often a long one, that one person or a team makes for a clear purpose, such as reaching a mountain or studying a placeSir John Franklin's 1845 expedition was lost with two ships and 129 men, inspiring dozens of subsequent expeditions to find and rescue him, none of them successful. — 1989 •A military journey; an enterprise against some enemy or into enemy territory. •An important or long journey, for example a march or a voyage. •The group of people making such excursion. •The process or activities of performing expediter tasks. •(no longer used) The act of expediting something; prompt execution. •(no longer used) The quality of being expedite; speed, quickness.one of them began to come nearer our boat than at first I expected; but I lay ready for him, for I had loaded my gun with all possible expedition […]. — 1719 verb1 •To take part in a trip or expedition; to travel.The attendance was given color by the ISO women who graced some of the sessions, attended the social events and expeditioned around the famous spots in Washington and its periphery area. — 1950 formsexpeditioned · expeditioning · expeditions Phrases with expedition fishing expeditionA search for information, especially incriminating information, that is conducted without specific direction or goal, in the hope that something may turn up.