blind

If someone or something is blind, they can't see.

Example: I'm not totally blind. I can see a little.

If someone or something is blind, they can't see the truth about something.

Example: How can you be so blind about your problems?

If someone is blinded, they become unable to see.

Example: The light was so bright that for a moment he was blinded.

A covering for a window to keep out light. The covering may be made of cloth or of narrow slats that can block light or allow it to pass.

Any device intended to conceal or hide; as, a duck blind.