elderberry vs European elder

elderberry and European elder both are nouns.

Word	Noun	Adjective	Verb	Adverb
elderberry	Yes	No	No	No
European elder	Yes	No	No	No

As nouns, elderberry and European elder are synonyms defined as:

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

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

elderberry (noun)	European elder (noun)
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
a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies