blind · adjective /blɑɪnd/Full view
B1 not able to see
Dictionary examples:

She's been blind since birth.

He started to go blind in his sixties.

Learner example:

She told him she was blind and she couldn't find her dog. (First Certificate in English; B2; Portuguese)

be blind to sth
C2 to not notice something, or not want to notice something
Dictionary example:

Drivers who speed are often blind to the risks to other drivers.

Learner example:

Not only is she completely oblivious of his inner feelings and thoughts, but she also seems to be blind to what is going on around her. (Certificate of Proficiency in English; C2; Greek)

blind · noun /blɑɪnd/
the blind
C1 people who are blind
Dictionary example:

He went to a school for the blind.

Learner example:

I write from Helpers, a Uruguayan Enterprise specializ[ing] in selling products for both the blind and the mute, and whose offerings your company in Britain is interested in selling. (Certificate in Advanced English; C1; Spanish)

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