panfish vs fish

panfish and fish both are nouns.

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

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

panfish: any of numerous small food fishes; especially those caught with hook and line and not available on the market
fish: the flesh of fish used as food

panfish (noun)	fish (noun)
any of numerous small food fishes; especially those caught with hook and line and not available on the market	any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills
	the flesh of fish used as food

panfish (verb)	fish (verb)
	catch or try to catch fish or shellfish
	seek indirectly