kaffir vs great millet

kaffir and great millet both are nouns.

Word	Noun	Adjective	Verb	Adverb
kaffir	Yes	No	No	No
great millet	Yes	No	No	No

As nouns, kaffir and great millet are synonyms defined as:

kaffir 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 kaffir include kaffir corn, kafir corn, Sorghum bicolor.

kaffir (noun)	great millet (noun)
an offensive and insulting term for any Black African	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