fish ball vs cake

fish ball and cake both are nouns.

Word	Noun	Adjective	Verb	Adverb
fish ball	Yes	No	No	No
cake	Yes	No	Yes	No

As nouns, cake is a hypernym of fish ball; that is, cake is a word with a broader meaning than fish ball:

Other hypernyms of fish ball include patty.

fish ball (noun)	cake (noun)
well-seasoned balls of ground fish and eggs and crushed crumbs simmered in fish stock	a block of solid substance (such as soap or wax)
a fried ball or patty of flaked fish and mashed potatoes	baked goods made from or based on a mixture of flour, sugar, eggs, and fat
	small flat mass of chopped or ground food

fish ball (verb)	cake (verb)
	form a coat over