catchall vs receptacle

catchall and receptacle both are nouns.

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

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

Other hypernyms of catchall include enclosure.

catchall (noun)	receptacle (noun)
an enclosure or receptacle for odds and ends	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