sardine vs food fish

sardine and food fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
sardine	Yes	No	No	No
food fish	Yes	No	No	No

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

sardine: any of various small edible herring or related food fishes frequently canned
food fish: any fish used for food by human beings

Other hypernyms of sardine include clupeid, clupeid fish.

sardine (noun)	food fish (noun)
any of various small edible herring or related food fishes frequently canned	any fish used for food by human beings
small fishes found in great schools along coasts of Europe; smaller and rounder than herring
small fatty fish usually canned
a deep orange-red variety of chalcedony