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.

A long journey undertaken by a group of people with a definite objective.

A trip made for a certain reason.

A journey organised for a specific purpose.