To make one's début.
A person’s or thing’s first appearance before society or another audience; one’s “maiden voyage”.
To make a gift of (something).
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 unintentionally reveal a secret, divulge undisclosed information, or expose someone.