To turn a blind eye/deaf ear American informal verb phrase
To deliberately ignore what one says, complains or asks for, or something wrong
I turned a deaf ear to her complaint.
I know he lies to me many times, but I still turn a blind eye and wait for him to tell the truth.
Rosie knows her boss' illegal behaviors, but she decided to turn a blind eye.
You shouldn't have turned a deaf ear to his warning.
The verb "turn" should be conjugated according to its tense.
This phrase is related to be a reference to Admiral Horatio Nelson ( 1758–1805 ) who raised his telescope to his blind eye during the Battle of Copenhagen (1801), thus he did not see the sign of his superior. Besides, there has another version of "turn a Nelson eye".
This phrase is used to describe something very modern or updated or something that no longer looks like what it's used to.
It has been a long time since I left my high school, and now I have to admit that it's certainly not your father's high school anymore.