noun
expedition
ek-spuh-DISH-un/ˌekspəˈdɪʃn/
An organized journey made for a particular purpose.
The researchers set out on an expedition to collect geological specimens.

Etymology
Latin expeditio meant a military campaign, an undertaking directed toward a particular objective. Expedition broadened from that military sense to a journey made for a specific purpose.
In context
send that expedition to England. But it meant without Mary he'd have to put himself on the throne or possibly his daughter Isabella installed as a puppet. Either way, Philillip made the decision to invade England
More examples
- We are planning an expedition to study Arctic wildlife.
- The expedition includes two scientists and an experienced guide.
- Several expeditions have searched the wreck for historical artifacts.
Forms
expedition · expeditions
expeditionary adjective — Organized or equipped for a specific expedition.