chamberpot vs receptacle

chamberpot and receptacle both are nouns.

Word	Noun	Adjective	Verb	Adverb
chamberpot	Yes	No	No	No
receptacle	Yes	No	No	No

As nouns, receptacle is a hypernym of chamberpot; that is, receptacle is a word with a broader meaning than chamberpot:

chamberpot (noun)	receptacle (noun)
a receptacle for urination or defecation in the bedroom	a container that is used to put or keep things in
	an electrical (or electronic) fitting that is connected to a source of power and equipped to receive an insert
	enlarged tip of a stem that bears the floral parts