starches vs rice

starches and rice both are nouns.

Word	Noun	Adjective	Verb	Adverb
starches	Yes	No	No	No
rice	Yes	No	Yes	No

As nouns, rice is a hyponym of starches; that is, rice is a word with a more specific, narrower meaning than starches:

starches: foodstuff rich in natural starch (especially potatoes, rice, bread)
rice: grains used as food either unpolished or more often polished

Other hyponyms of starches include bread, breadstuff, staff of life, Irish potato, murphy, potato, spud, tater, white potato.

starches (noun)	rice (noun)
foodstuff rich in natural starch (especially potatoes, rice, bread)	grains used as food either unpolished or more often polished
	annual or perennial rhizomatous marsh grasses; seed used for food; straw used for paper

starches (verb)	rice (verb)
	sieve so that it becomes the consistency of rice