give away

verb7

1. •
   To make a gift of (something).

   • I didn't like that book, so I gave it away.
2. •
   [with oneself] To unintentionally reveal a secret or divulge undisclosed information; to betray or expose someone.

   • He gave himself away with a stupid lie.
   • He gave away his hiding place when he accidentally sneezed.
3. •
   (informal) To sell very cheaply.

   • This was dramatically illustrated by the market for commercial real estate in New York during 1993, which was said to be "so bad that they're giving it away". — 2019
4. •
   To formally hand over a bride to the bridegroom; often by her father.

   • Who giveth away this woman to this man in Holy matrimony?
5. •
   To relinquish control over.
6. •
   To concede an advantage in weight, time, height etc.

   • Despite giving away twenty pounds in weight, the challenger found a knock-out blow in the second round.
7. •
   To concede.