melagueta pepper vs grains of paradise

melagueta pepper and grains of paradise both are nouns.

Word	Noun	Adjective	Verb	Adverb
melagueta pepper	Yes	No	No	No
grains of paradise	Yes	No	No	No

As nouns, melagueta pepper and grains of paradise are synonyms defined as:

melagueta pepper and grains of paradise: West African plant bearing pungent peppery seeds

Other synonyms of melagueta pepper include Aframomum melegueta, Guinea grains, Guinea pepper.

melagueta pepper (noun)	grains of paradise (noun)
West African plant bearing pungent peppery seeds	West African plant bearing pungent peppery seeds