To cut off; separate.To determine, as a question, controversy, or struggle, by some mode of arbitrament; settle by giving the victory to one side or the other; determine the issue or result of; adjust; conclude; end: as, the court decided the case in favor of the plaintiff; the umpire decided the contest; the fate of the bill is decided.To resolve; determine in the mind: as, he decided to go.To determine; form a definite opinion; come to a conclusion; pronounce a judgment: as, the court decided in favor of the defendant; to decide upon one's course.