twinberry vs partridgeberry

twinberry and partridgeberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
twinberry	Yes	No	No	No
partridgeberry	Yes	No	No	No

As nouns, twinberry and partridgeberry are synonyms defined as:

twinberry and partridgeberry: creeping woody plant of eastern North America with shiny evergreen leaves and scarlet berries

Other synonyms of twinberry include boxberry, Mitchella repens.

twinberry (noun)	partridgeberry (noun)
shrubby honeysuckle with purple flowers; western North America	creeping woody plant of eastern North America with shiny evergreen leaves and scarlet berries
creeping woody plant of eastern North America with shiny evergreen leaves and scarlet berries