galley vs caboose

galley and caboose both are nouns.

Word	Noun	Adjective	Verb	Adverb
galley	Yes	No	No	No
caboose	Yes	No	No	No

As nouns, galley and caboose are synonyms defined as:

Other synonyms of galley include cookhouse, ship's galley.

galley (noun)	caboose (noun)
the area for food preparation on a ship	a car on a freight train for use of the train crew; usually the last car on the train
the kitchen area for food preparation on an airliner	the area for food preparation on a ship
(classical antiquity) a crescent-shaped seagoing vessel propelled by oars
a large medieval vessel with a single deck propelled by sails and oars with guns at stern and prow; a complement of 1,000 men; used mainly in the Mediterranean for war and trading