serviceberry vs shadbush

serviceberry and shadbush both are nouns.

Word	Noun	Adjective	Verb	Adverb
serviceberry	Yes	No	No	No
shadbush	Yes	No	No	No

As nouns, serviceberry and shadbush are synonyms defined as:

serviceberry and shadbush: any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit

Other synonyms of serviceberry include Juneberry, service tree, shadblow.

serviceberry (noun)	shadbush (noun)
edible purple or red berries	any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit
any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit