Guinea pepper vs Aframomum melegueta

Guinea pepper and Aframomum melegueta both are nouns.

Word	Noun	Adjective	Verb	Adverb
Guinea pepper	Yes	No	No	No
Aframomum melegueta	Yes	No	No	No

As nouns, Guinea pepper and Aframomum melegueta are synonyms defined as:

Guinea pepper and Aframomum melegueta: West African plant bearing pungent peppery seeds

Other synonyms of Guinea pepper include grains of paradise, Guinea grains, melagueta pepper.

Guinea pepper (noun)	Aframomum melegueta (noun)
tropical west African evergreen tree bearing pungent aromatic seeds used as a condiment and in folk medicine	West African plant bearing pungent peppery seeds
West African plant bearing pungent peppery seeds