bourtree vs elderberry

bourtree and elderberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
bourtree	Yes	No	No	No
elderberry	Yes	No	No	No

As nouns, bourtree and elderberry are synonyms defined as:

bourtree and elderberry: a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies

Other synonyms of bourtree include black elder, common elder, European elder, Sambucus nigra.

bourtree (noun)	elderberry (noun)
a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies	berrylike fruit of an elder used for e.g. wines and jellies
	a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies