Meaning
To deliberately ignore something wrong, unpleasant or inconvenient despite being aware of it. Often implies a conscious decision not to intervene.
Origin
The metaphor is straightforward: a person behaves as though one eye cannot see what is plainly visible. A popular historical story connects the phrase with Admiral Horatio Nelson, who reportedly put a telescope to his blind eye during the Battle of Copenhagen in 1801 so that he could claim not to see a signal to withdraw. The anecdote is memorable and may have reinforced the expression, but it should not be treated uncritically as proof that Nelson invented it; related figurative language existed independently. Modern turn a blind eye emphasizes deliberate disregard, especially by people who have responsibility or authority. It can describe overlooking minor rule-breaking or ignoring serious misconduct, depending on context.
Examples
The manager turned a blind eye to repeated lateness.
We can’t turn a blind eye to what happened.
They turned a blind eye when the rules were broken.
Frequently asked questions
What does 'Turn a blind eye' mean?
To deliberately ignore something wrong, unpleasant or inconvenient despite being aware of it. Often implies a conscious decision not to intervene.