tum vs craw

tum and craw both are nouns.

Word	Noun	Adjective	Verb	Adverb
tum	Yes	No	No	No
craw	Yes	No	No	No

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

tum: an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion
craw: a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food

tum (noun)	craw (noun)
an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion	a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food