true guava vs guava bush

true guava and guava bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
true guava	Yes	No	No	No
guava bush	Yes	No	No	No

As nouns, true guava and guava bush are synonyms defined as:

true guava and guava bush: small tropical American shrubby tree; widely cultivated in warm regions for its sweet globular yellow fruit

Other synonyms of true guava include guava, Psidium guajava.

true guava (noun)	guava bush (noun)
small tropical American shrubby tree; widely cultivated in warm regions for its sweet globular yellow fruit	small tropical American shrubby tree; widely cultivated in warm regions for its sweet globular yellow fruit