give away

verb

1. make a gift of"She gave away her antique furniture"
2. make known to the public information that was previously known only to a few people or that was meant to be kept a secret"The auction house would not disclose the price at which the van Gogh had sold"
3. formally hand over to the bridegroom in marriage; of a bride by her father
4. give away information about somebody"He told on his classmate who had cheated on the exam"