Striving; earnest endeavor; hard work.
A trouble of any kind.
Bitter conflict, sometimes violent.
Exertion or contention for superiority, either by physical or intellectual means.
The act of submitting or giving e.g. a completed piece of work.
The act of submitting or yielding; surrender.
A submission hold in wrestling, mixed martial arts, or other combat sports.
The thing which has been submitted.
A subset or component of a mission.