cecum vs cavity

cecum and cavity both are nouns.

Word	Noun	Adjective	Verb	Adverb
cecum	Yes	No	No	No
cavity	Yes	No	No	No

As nouns, cavity is a hypernym of cecum; that is, cavity is a word with a broader meaning than cecum:

cecum: the cavity in which the large intestine begins and into which the ileum opens
cavity: (anatomy) a natural hollow or sinus within the body

Other hypernyms of cecum include bodily cavity, cavum.

cecum (noun)	cavity (noun)
the cavity in which the large intestine begins and into which the ileum opens	(anatomy) a natural hollow or sinus within the body
	a sizeable hole (usually in the ground)
	soft decayed area in a tooth; progressive decay can lead to the death of a tooth
	space that is surrounded by something