corn vs cereal

corn and cereal both are nouns.

Word	Noun	Adjective	Verb	Adverb
corn	Yes	No	Yes	No
cereal	Yes	Yes	No	No

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

Other hypernyms of corn include food grain, grain.

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

corn: tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times
cereal: grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet

Other hypernyms of corn include cereal grass.

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

corn: (Great Britain) any of various cereal plants (especially the dominant crop of the region--wheat in Great Britain or oats in Scotland and Ireland)
cereal: grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet

Other hypernyms of corn include cereal grass.

corn (noun)	cereal (noun)
something sentimental or trite	a breakfast food prepared from grain
ears of corn that can be prepared and served for human food	foodstuff prepared from the starchy grains of cereal grasses
whiskey distilled from a mash of not less than 80 percent corn	grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet
tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times
(Great Britain) any of various cereal plants (especially the dominant crop of the region--wheat in Great Britain or oats in Scotland and Ireland)
the dried grains or kernels or corn used as animal feed or ground for meal
a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes

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

corn (verb)	cereal (verb)
preserve with large-grained rock salt
feed (cattle) with corn