give away

make a gift of; "She gave away her antique furniture"

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"; "The actress won't reveal how old she is"; "bring out the truth"; "he broke the news to her"; "unwrap the evidence in the murder case"

formally hand over to the bridegroom in marriage; of a bride by her father

give away information about somebody; "He told on his classmate who had cheated on the exam"