a large low usu single-decked ship propelled by oars and sails and used in the Mediterranean in the Middle Ages and in classical antiquity
a large rowing boat
a kitchen on a ship or aircraft
in printing, a proof in the form of a long sheet
in printing:
a long oblong tray with upright sides for holding set type
a proof in the form of a long sheet taken from type on a galley
[Middle English galeie via Old French from medieval Latin galea, from early Greek]