To unintentionally reveal a secret, divulge undisclosed information, or expose someone.
To concede.
To formally hand over a bride to the bridegroom; often by her father.
To relinquish control over.
To concede an advantage in weight, time, height etc.
To make a gift of (something).
To inform on, especially in betrayal of others.
To contact or cooperate with the police for any reason.
A ball used in the sport of Quidditch.
A thief.
An informer, one who betrays his group.
A nose.
A tiny morsel.