Guinea corn vs Indian millet

Guinea corn and Indian millet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Guinea corn	Yes	No	No	No
Indian millet	Yes	No	No	No

As nouns, Guinea corn and Indian millet are synonyms defined as:

Guinea corn and Indian millet: sorghums of dry regions of Asia and North Africa

Other synonyms of Guinea corn include doura, dourah, durra, Egyptian corn.

Guinea corn (noun)	Indian millet (noun)
sorghums of dry regions of Asia and North Africa	sorghums of dry regions of Asia and North Africa
	valuable forage grass of dry upland areas and plains of western North America to northern Mexico