brisling vs sardine

brisling and sardine both are nouns.

Word	Noun	Adjective	Verb	Adverb
brisling	Yes	No	No	No
sardine	Yes	No	No	No

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

brisling: small herring processed like a sardine
sardine: any of various small edible herring or related food fishes frequently canned

brisling (noun)	sardine (noun)
small herring processed like a sardine	any of various small edible herring or related food fishes frequently canned
small fatty European fish; usually smoked or canned like sardines	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