flour vs soybean meal

flour and soybean meal both are nouns.

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

As nouns, soybean meal is a hyponym of flour; that is, soybean meal is a word with a more specific, narrower meaning than flour:

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

Other hyponyms of flour include plain flour, wheat flour, soy flour, soybean flour, semolina, rye flour.

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

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