chamber vs cavity

chamber and cavity both are nouns.

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

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

Other hypernyms of chamber include bodily cavity, cavum.

chamber (noun)	cavity (noun)
a natural or artificial enclosed space	(anatomy) a natural hollow or sinus within the body
a room used primarily for sleeping	a sizeable hole (usually in the ground)
a room where a judge transacts business	soft decayed area in a tooth; progressive decay can lead to the death of a tooth
an enclosed volume in the body	space that is surrounded by something
a deliberative or legislative or administrative or judicial assembly

chamber (verb)	cavity (verb)
place in a chamber