meal vs matzah meal

meal and matzah meal both are nouns.

Word	Noun	Adjective	Verb	Adverb
meal	Yes	No	No	No
matzah meal	Yes	No	No	No

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

meal: coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
matzah meal: meal made from ground matzos

meal (noun)	matzah meal (noun)
the food served and eaten at one time	meal made from ground matzos
coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
any of the occasions for eating food that occur by custom or habit at more or less fixed times