kafir corn vs great millet

kafir corn and great millet both are nouns.

Word	Noun	Adjective	Verb	Adverb
kafir corn	Yes	No	No	No
great millet	Yes	No	No	No

As nouns, kafir corn and great millet are synonyms defined as:

kafir corn and great millet: important for human and animal food; growth habit and stem form similar to Indian corn but having sawtooth-edged leaves

Other synonyms of kafir corn include kaffir, kaffir corn, Sorghum bicolor.

kafir corn (noun)	great millet (noun)
important for human and animal food; growth habit and stem form similar to Indian corn but having sawtooth-edged leaves	important for human and animal food; growth habit and stem form similar to Indian corn but having sawtooth-edged leaves