drop cloth vs drapery

drop cloth and drapery both are nouns.

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

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

drop cloth: 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 cloth include curtain, drape, mantle, pall.

drop cloth (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)
a large piece of cloth laid over the floor or furniture while a room is being painted	cloth gracefully draped and arranged in loose folds