give away
• give something freely as a gift or donation.
• "I gave away all my books"
• reveal the true identity of someone.
• "his strangely shaped feet gave him away"
• hand over a bride ceremonially to her bridegroom as part of a wedding ceremony.
• (in sport) concede a goal or advantage to the opposition, especially through careless play.
• "the goal we gave away was a bit sloppy"
• stop doing something.
• "he was thinking of giving it away and starting a line in poultry manure"
giveaway
noun
• a thing that is given free, often for promotional purposes.
• "every issue is packed with competitions and great giveaways"
• a thing that makes an inadvertent revelation.
• "the shape of the parcel was a dead giveaway"
giveaway
adjective
• free of charge.
• "giveaway CDs"
• inadvertently revealing something.
• "small giveaway mannerisms"