(1):

(v. t.) To convey by a lighter, as to or from the shore; as, to lighter the cargo of a ship.

(2):

(n.) A large boat or barge, mainly used in unloading or loading vessels which can not reach the wharves at the place of shipment or delivery.

(3):

(n.) One who, or that which, lights; as, a lighter of lamps.