wild rice vs cereal

wild rice and cereal both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild rice	Yes	No	No	No
cereal	Yes	Yes	No	No

As nouns, cereal is a hypernym of wild rice; that is, cereal is a word with a broader meaning than wild rice:

Other hypernyms of wild rice include food grain, grain.

As nouns, cereal is a hypernym of wild rice; that is, cereal is a word with a broader meaning than wild rice:

wild rice: perennial aquatic grass of North America bearing grain used for food
cereal: grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet

Other hypernyms of wild rice include cereal grass.

wild rice (noun)	cereal (noun)
grains of aquatic grass of North America	a breakfast food prepared from grain
perennial aquatic grass of North America bearing grain used for food	foodstuff prepared from the starchy grains of cereal grasses
	grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet

wild rice (adjective)	cereal (adjective)
	made of grain or relating to grain or the plants that produce it