Meaning

• To make a gift of (something).

  "I didn't like that book, so I gave it away."

• To relinquish control over.

• To formally hand over a bride to the bridegroom; often by her father.

  "Who giveth away this woman to this man in Holy matrimony?"

• (sometimes reflexive) To unintentionally reveal a secret, divulge undisclosed information, or expose someone.

  "He gave away his hiding place when he accidentally sneezed."

• 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."

• To concede.