king nut hickory vs hickory

king nut hickory and hickory both are nouns.

Word	Noun	Adjective	Verb	Adverb
king nut hickory	Yes	No	No	No
hickory	Yes	No	No	No

As nouns, hickory is a hypernym of king nut hickory; that is, hickory is a word with a broader meaning than king nut hickory:

king nut hickory: hickory of the eastern United States resembling the shagbark but having a much larger nut
hickory: American hardwood tree bearing edible nuts

Other hypernyms of king nut hickory include hickory tree.

king nut hickory (noun)	hickory (noun)
hickory of the eastern United States resembling the shagbark but having a much larger nut	American hardwood tree bearing edible nuts
	valuable tough heavy hardwood from various hickory trees