1.(Feudal Law) The territory within which the lord has the power of coercing and punishing.
2.A division of territory; a defined portion of a state, town, or city, etc., made for administrative, electoral, or other purposes; as, a congressional district, judicial district, land district, school district, etc. "To exercise exclusive legislation... over such district not exceeding ten miles square."
3.Any portion of territory of undefined extent; a region; a country; a tract. "These districts which between the tropics lie."