caecum vs bodily cavity

caecum and bodily cavity both are nouns.

Word	Noun	Adjective	Verb	Adverb
caecum	Yes	No	No	No
bodily cavity	Yes	No	No	No

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

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

Other hypernyms of caecum include cavity, cavum.

caecum (noun)	bodily 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