A person or object having the power of judging and determining, or ordaining, without control; one whose power of deciding and governing is not limited.
A person appointed, or chosen, by parties to determine a controversy between them; an arbitrator.
A component in circuitry that allocates scarce resources.
To act as arbiter.
The possessor of a master's degree.
Master; sir: a title used in the Middle Ages, given to a person in authority, or to one having a licence from a university to teach philosophy and the liberal arts.