cranberry tree vs shrub

cranberry tree and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
cranberry tree	Yes	No	No	No
shrub	Yes	No	No	No

As nouns, shrub is a hypernym of cranberry tree; that is, shrub is a word with a broader meaning than cranberry tree:

cranberry tree: deciduous North American shrub or small tree having three-lobed leaves and red berries
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of cranberry tree include bush.

As nouns, shrub is a hypernym of cranberry tree; that is, shrub is a word with a broader meaning than cranberry tree:

cranberry tree: deciduous thicket-forming Old World shrub with clusters of white flowers and small bright red berries
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of cranberry tree include bush.

cranberry tree (noun)	shrub (noun)
deciduous North American shrub or small tree having three-lobed leaves and red berries	a low woody perennial plant usually having several major stems
deciduous thicket-forming Old World shrub with clusters of white flowers and small bright red berries