kippered herring vs herring

kippered herring and herring both are nouns.

Word	Noun	Adjective	Verb	Adverb
kippered herring	Yes	No	No	No
herring	Yes	No	No	No

As nouns, herring is a hypernym of kippered herring; that is, herring is a word with a broader meaning than kippered herring:

kippered herring: salted and smoked herring
herring: valuable flesh of fatty fish from shallow waters of northern Atlantic or Pacific; usually salted or pickled

kippered herring (noun)	herring (noun)
salted and smoked herring	commercially important food fish of northern waters of both Atlantic and Pacific
	valuable flesh of fatty fish from shallow waters of northern Atlantic or Pacific; usually salted or pickled