false dogwood vs soapberry

false dogwood and soapberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
false dogwood	Yes	No	No	No
soapberry	Yes	No	No	No

As nouns, soapberry is a hypernym of false dogwood; that is, soapberry is a word with a broader meaning than false dogwood:

false dogwood: evergreen of tropical America having pulpy fruit containing saponin which was used as soap by Native Americans
soapberry: a tree of the genus Sapindus whose fruit is rich in saponin

Other hypernyms of false dogwood include soapberry tree.

false dogwood (noun)	soapberry (noun)
evergreen of tropical America having pulpy fruit containing saponin which was used as soap by Native Americans	a tree of the genus Sapindus whose fruit is rich in saponin