goldfish bowl vs marine museum

goldfish bowl and marine museum both are nouns.

Word	Noun	Adjective	Verb	Adverb
goldfish bowl	Yes	No	No	No
marine museum	Yes	No	No	No

As nouns, marine museum is a hypernym of goldfish bowl; that is, marine museum is a word with a broader meaning than goldfish bowl:

goldfish bowl: a transparent bowl in which small fish are kept
marine museum: a tank or pool or bowl filled with water for keeping live fish and underwater animals

Other hypernyms of goldfish bowl include aquarium, fish tank, bowl.

goldfish bowl (noun)	marine museum (noun)
a transparent bowl in which small fish are kept	a tank or pool or bowl filled with water for keeping live fish and underwater animals
a state of affairs in which you have no privacy