silverbush vs silver berry

silverbush and silver berry both are nouns.

Word	Noun	Adjective	Verb	Adverb
silverbush	Yes	No	No	No
silver berry	Yes	No	No	No

As nouns, silverbush and silver berry are synonyms defined as:

silverbush and silver berry: deciduous unarmed North American shrub with silvery leaves and fruits

Other synonyms of silverbush include Elaeagnus commutata, silver-bush, silverberry.

silverbush (noun)	silver berry (noun)
deciduous unarmed North American shrub with silvery leaves and fruits	deciduous unarmed North American shrub with silvery leaves and fruits
silvery hairy European shrub with evergreen foliage and pale yellow flowers	deciduous shrubby tree of Europe and western Asia having grey leaves and small yellow fruits covered in silvery scales; sometimes spiny