Christmasberry vs bush

Christmasberry and bush both are nouns.

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

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

Christmasberry: ornamental evergreen treelike shrub of the Pacific coast of the United States having large white flowers and red berrylike fruits; often placed in genus Photinia
bush: a low woody perennial plant usually having several major stems

Other hypernyms of Christmasberry include shrub.

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

Christmasberry: spiny evergreen shrub of southeastern United States having spreading branches usually blue or mauve flowers and red berries
bush: a low woody perennial plant usually having several major stems

Other hypernyms of Christmasberry include shrub.

Christmasberry (noun)	bush (noun)
ornamental evergreen treelike shrub of the Pacific coast of the United States having large white flowers and red berrylike fruits; often placed in genus Photinia	hair growing in the pubic area
spiny evergreen shrub of southeastern United States having spreading branches usually blue or mauve flowers and red berries	dense vegetation consisting of stunted trees or bushes
	a large wilderness area
	a low woody perennial plant usually having several major stems

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

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