wheat vs cereal

wheat and cereal both are nouns.

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

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

wheat: grains of common wheat; sometimes cooked whole or cracked as cereal; usually ground into flour
cereal: foodstuff prepared from the starchy grains of cereal grasses

Other hypernyms of wheat include food grain, grain.

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

wheat: annual or biennial grass having erect flower spikes and light brown grains
cereal: grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet

Other hypernyms of wheat include cereal grass.

wheat (noun)	cereal (noun)
a variable yellow tint; dull yellow, often diluted with white	a breakfast food prepared from grain
grains of common wheat; sometimes cooked whole or cracked as cereal; usually ground into flour	foodstuff prepared from the starchy grains of cereal grasses
annual or biennial grass having erect flower spikes and light brown grains	grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet

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