vestibule vs bodily cavity

vestibule and bodily cavity both are nouns.

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

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

vestibule: any of various bodily cavities leading to another cavity (as of the ear or vagina)
bodily cavity: (anatomy) a natural hollow or sinus within the body

Other hypernyms of vestibule include cavity, cavum.

vestibule (noun)	bodily cavity (noun)
a large entrance or reception room or area	(anatomy) a natural hollow or sinus within the body
any of various bodily cavities leading to another cavity (as of the ear or vagina)