buckthorn vs bush

buckthorn and bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
buckthorn	Yes	No	No	No
bush	Yes	Yes	Yes	No

As nouns, bush is a hypernym of buckthorn; that is, bush is a word with a broader meaning than buckthorn:

Other hypernyms of buckthorn include shrub.

As nouns, bush is a hypernym of buckthorn; that is, bush is a word with a broader meaning than buckthorn:

buckthorn: a shrub or shrubby tree of the genus Rhamnus; fruits are source of yellow dyes or pigments
bush: a low woody perennial plant usually having several major stems

Other hypernyms of buckthorn include shrub.

buckthorn (noun)	bush (noun)
any shrub or small tree of the genus Bumelia	hair growing in the pubic area
a shrub or shrubby tree of the genus Rhamnus; fruits are source of yellow dyes or pigments	dense vegetation consisting of stunted trees or bushes
an Old World plantain with long narrow ribbed leaves widely established in temperate regions	a large wilderness area
	a low woody perennial plant usually having several major stems

buckthorn (adjective)	bush (adjective)
	not of the highest quality or sophistication

buckthorn (verb)	bush (verb)
	provide with a bushing