giveaway
noun
[ ˈɡɪvəweɪ ]
• 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"