caboose vs ship's galley

caboose and ship's galley both are nouns.

Word	Noun	Adjective	Verb	Adverb
caboose	Yes	No	No	No
ship's galley	Yes	No	No	No

As nouns, caboose and ship's galley are synonyms defined as:

Other synonyms of caboose include cookhouse, galley.

caboose (noun)	ship's galley (noun)
a car on a freight train for use of the train crew; usually the last car on the train	the area for food preparation on a ship
the area for food preparation on a ship