jujube bush vs bush

jujube bush and bush both are nouns.

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

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

Other hypernyms of jujube bush include shrub.

jujube bush (noun)	bush (noun)
spiny tree having dark red edible fruits	hair growing in the pubic area
	dense vegetation consisting of stunted trees or bushes
	a large wilderness area
	a low woody perennial plant usually having several major stems

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

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