Argument, contest, debate, strife, struggle.
Competition by parts of a system or its users for a limited resource.
A point maintained in an argument, or a line of argument taken in its support; the subject matter of discussion of strife; a position taken or contended for.
Bitter conflict, sometimes violent.
A trouble of any kind.
Striving; earnest endeavor; hard work.
Exertion or contention for superiority, either by physical or intellectual means.