out-basket vs receptacle

out-basket and receptacle both are nouns.

Word	Noun	Adjective	Verb	Adverb
out-basket	Yes	No	No	No
receptacle	Yes	No	No	No

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

out-basket: a wood or metal receptacle placed on your desk to hold your outgoing material
receptacle: a container that is used to put or keep things in

out-basket (noun)	receptacle (noun)
a wood or metal receptacle placed on your desk to hold your outgoing material	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