soybean meal vs flour

soybean meal and flour both are nouns.

Word	Noun	Adjective	Verb	Adverb
soybean meal	Yes	No	No	No
flour	Yes	No	Yes	No

As nouns, flour is a hypernym of soybean meal; that is, flour is a word with a broader meaning than soybean meal:

soybean meal: meal made from soybeans
flour: fine powdery foodstuff obtained by grinding and sifting the meal of a cereal grain

soybean meal (noun)	flour (noun)
meal made from soybeans	fine powdery foodstuff obtained by grinding and sifting the meal of a cereal grain

soybean meal (verb)	flour (verb)
	convert grain into flour
	cover with flour