•to attempt/commit suicide企图自杀／自杀

•The suicide rate among men between the ages of 16 and 25 has risen alarmingly.16至25岁之间男性的自杀率攀升速度惊人。

•Many suicides occur in prisons.监狱中的自杀事件很多。

•[+ to infinitive] As a leader he knows that it is political suicide to appear indecisive.他知道作为一位领袖，表现得犹疑不定无疑是在政治上自取灭亡。