Definitions
1.nounThe act of expediting something; prompt execution.
2.nounA military journey; an enterprise against some enemy or into enemy territory.
3.nounThe quality of being expedite; speed, quickness.
4.nounAn important or long journey, for example a march or a voyage
5.nounA trip, especially a long one, made by a person or a group of people for a specific purpose"a naval expedition"
6.nounThe group of people making such excursion.