blind vs curtain

blind and curtain both are nouns.

Word	Noun	Adjective	Verb	Adverb
blind	Yes	Yes	Yes	No
curtain	Yes	No	Yes	No

As nouns, curtain is a hyponym of blind; that is, curtain is a word with a more specific, narrower meaning than blind:

Other hyponyms of blind include drape, drapery, mantle, pall, shutter, window blind, blinder, blinker, winker.

blind (noun)	curtain (noun)
a protective covering that keeps things out or hinders sight	hanging cloth used as a blind (especially for a window)
a hiding place sometimes used by hunters (especially duck hunters)	any barrier to communication or vision
something intended to misrepresent the true nature of an activity
people who have severe visual impairments, considered as a group

blind (adjective)	curtain (adjective)
unable to see
not based on reason or evidence
unable or unwilling to perceive or understand

blind (verb)	curtain (verb)
make dim by comparison or conceal	provide with drapery
make blind by putting the eyes out
render unable to see