C a piece of rope that is formed into a circle at one end , so that if you pull the other end the circle becomes smaller. A noose is used for killing someone by hanging them by the neck . 绞索；套索
singular a dangerous situation that is difficult to escape from 束缚；圈套；陷阱
put/stick/place your head in a noose (=to put yourself in a dangerous situation) Politically, the party has put its head in a noose. 使自己处于危险境地；自投罗网；自寻死路
tighten the noose (=to make a situation more difficult to escape from) The international community was tightening the economic noose around South Africa’ s neck. 勒紧绞索；使情况更加危险