give away in WordNet English dictionary

1. give away information about somebody
   "He told on his classmate who had cheated on the exam"
   denounce  tell on  betray  give away  rat  grass  shit  shop  snitch  stag 
   
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"; "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"
   unwrap  disclose  let on  bring out  reveal  discover  expose  divulge  break  give away  let out 
   
3. make a gift of
   "She gave away her antique furniture"
   give away 
   
4. formally hand over to the bridegroom in marriage; of a bride by her father
   give away 
   

give away in English Wiktionary