cookhouse vs ship's galley

cookhouse and ship's galley both are nouns.

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

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

Other synonyms of cookhouse include caboose, galley.

cookhouse (noun)	ship's galley (noun)
the area for food preparation on a ship	the area for food preparation on a ship
a detached or outdoor shelter for cooking