/'di:kɔɪ; `dikɔɪ/
n
(a) (real or imitation) bird or animal used to attract others so that they can be shot or trapped （用于诱捕鸟兽的）动物（或仿制物）.
(b) (fig 比喻) person or thing used to lure sb into a position of danger 用于引诱某人落入圈套的人或物.

/dɪ'kɔɪ; dɪ`kɔɪ/
v [Tn, Tn.pr] trick (a person or an animal) into a place of danger by using a decoy 用诱饵诱骗（某人或动物）落入圈套
*He was decoyed by a false message (into entering enemy territory). 他被假情报诱骗（进入敌区）.

n[C]
[Date: 1500-1600; Language: Dutch;Origin: de cooi 'the cage' (= structure of bars for keeping animals in)]
someone or something that is used to trick someone into going somewhere or doing something, so that you can catch them, attack them etc
　Officer Langley acted as a decoy to catch the rapist.
a model of a bird used to attract wild birds so that you can watch them or shoot them
>decoy [dɪ'kɔɪ/