Within a vast military, a very large tactical contingent (e.g. a number of divisions).
Used absolutely for that entire branch of the armed forces.
The governmental agency in charge of a state's army.
A large, highly organized military force, concerned mainly with ground (rather than air or naval) operations.
The military as a whole.
Any multitude.
A large group of people working toward the same purpose.
A large group of social animals working toward the same purpose.
A unit of tactical military personnel, or of police officers, usually of about ten members.
Sloppy mud.
One's friend group, taken collectively; one's peeps.
A group of potential players from whom a starting team and substitutes are chosen.
A collective noun for a group of squid.
To act as part of, or on behalf of, a squad.