give-away

n (infml 口) 1 thing that is given to sb without charge 赠品. 2 look, remark, etc that unintentionally reveals a secret 无意中泄露秘密的表情、 言语等: The expression on her face was a (dead) give-away. 她脸上的表情（完全）暴露了她的秘密.

give one's ears, give oneself away, give oneself up, give oneself up to, give orders (to do sth.), give out, give over, give over (doing sth), give rise to, give satisfaction, give sb back sth; give sth back (to sb), give sb. away, give sth for sth, give sth forth, give sth in, give sth off, give up, give way, give way to, give way to..., given, given name, giver, gizzard, glace, glacial, glacially, glaciation, glacier, glad, glad-hand, gladden, glade, gladiator, gladiatorial, gladiolus, gladly, gladness, gladsome, glamor,