Sources: 英汉公共大词典; Law Dictionary
You are honest to admit your mistake.
I admit this may not be the best way of doing it.
Did he admit that he was wrong?
It doesn't matter whether she admits her guilt or not.
He admitted his mistakes.
I admit that he is right.
No admittance except on business.
I must admit that I snore.
This ticket will admit two persons free.
It's very big of you to admit you're wrong.