blind
Pronunciation: /blʌɪnd/
adjective
- 1unable to see because of injury, disease, or a congenital condition: a blind man with a stick he was blind in one eye (as plural noun the blind) guide dogs for the blind
- (of an action, especially a test or experiment) done without being able to see or without having relevant information: a blind tasting of eight wines
- Aeronautics (of flying) using instruments only: blind landings during foggy conditions
- 2lacking perception, awareness, or judgement: a blind acceptance of the status quo she was blind to the realities of her position
- not controlled by reason: they left in blind panic
- not governed by purpose: a world of blind chance
- 3concealed or closed, in particular:
- (of a corner or bend in a road) impossible to see round: two trucks collided on a blind curve in the road
- (of a door or window) walled up: fresco paintings on the blind windows
- closed at one end: a blind pipe
verb
- 1cause (someone) to be unable to see, permanently or temporarily: the injury temporarily blinded him her eyes were blinded with scalding tears
noun
- 1a screen for a window, especially one on a roller or made of slats: she pulled down the blinds
- British an awning over a shop window.
adverb

Phrases
-
bake something blind
- bake a pastry or flan case without a filling.
-
(as) blind as a bat
- informal having very bad eyesight: she’s blind as a bat without glasses
-
blind drunk
- informal extremely drunk.
-
there's none so blind as those who will not see
- proverb there’s no point trying to reason with someone who does not want to listen to reason.
-
turn a blind eye
- pretend not to notice: please, don’t turn a blind eye to what is happening[said to be in allusion to Nelson, who lifted a telescope to his blind eye at the Battle of Copenhagen (1801), thus not seeing the signal to ‘discontinue the action’]
-
when the blind lead the blind, both shall fall into a ditch
- proverb those people without knowledge or experience should not try to guide or advise others in a similar position: I didn’t know anything about fighting and neither did my students—it was the blind leading the blind

Origin:
Old English, of Germanic origin; related to Dutch and German blind