Noah Webster's New International Dictionary of the English Language

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

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