fish vs seine

fish and seine both are nouns.

Word	Noun	Adjective	Verb	Adverb
fish	Yes	No	Yes	No
seine	Yes	No	Yes	No

As verbs, seine is a hyponym of fish; that is, seine is a word with a more specific, narrower meaning than fish:

Other hyponyms of fish include crab, scallop, scollop, rail, brail, angle, shrimp, net fish, shark, trawl, still-fish, prawn.

fish (noun)	seine (noun)
any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills	a large fishnet that hangs vertically, with floats at the top and weights at the bottom
the flesh of fish used as food

fish (verb)	seine (verb)
catch or try to catch fish or shellfish	fish with a seine; catch fish with a seine
seek indirectly