put an end to的意思是结束某事，画上句号，例如：
1.The time has come to put an end to the conflict.结束冲突的时候到了。
2.I flatter myself that this campaign will put an end to the war.我自认为这次战役将结束这场战争。
3.A call to the police should put an end to their little caper.给警察打个电话应该就能制止他们的胡闹。