noun
corps
KOR/kɔːr/
An organized group trained for a shared activity or service, especially in the military.
The rescue corps carries equipment toward the flooded street in a coordinated group.

Etymology
The image is a group functioning as one body. First used for an organized military body, corps extended to other groups united by a shared role.
In context
service corps programs are popping up across the United States.
After the war, he worked his way into the diplomatic corps, eventually becoming the first permanent representative of Malta
More examples
- She joins a volunteer corps trained in disaster relief.
- Members of the diplomatic corps attend the ceremony.
- Two army corps take part in the exercise.
Forms
corps