drop curtain vs drapery

drop curtain and drapery both are nouns.

Word	Noun	Adjective	Verb	Adverb
drop curtain	Yes	No	No	No
drapery	Yes	No	No	No

As nouns, drapery is a hypernym of drop curtain; that is, drapery is a word with a broader meaning than drop curtain:

drop curtain: a curtain that can be lowered and raised onto a stage from the flies; often used as background scenery
drapery: hanging cloth used as a blind (especially for a window)

Other hypernyms of drop curtain include curtain, drape, mantle, pall.

drop curtain (noun)	drapery (noun)
a curtain that can be lowered and raised onto a stage from the flies; often used as background scenery	hanging cloth used as a blind (especially for a window)
	cloth gracefully draped and arranged in loose folds