fish bowl vs marine museum

fish bowl and marine museum both are nouns.

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

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

fish 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 fish bowl include aquarium, fish tank, bowl.

fish 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