1 to stop holding sth and put it on the floor, a table, etc 把某物放在地板、桌子等上: The policeman persuaded him to put the gun down. 警察劝他把枪放下。

2 to write sth 书写: I'll put that down in my diary. 我会把那个写在记事簿里。

3 to pay part of the cost of sth 支付部份费用: We put down a 10% deposit on a car. 我们付一成订金买了一辆车。

4 (used about a government, an army or the police) to stop sth by force （指政府、军队或警察）用武力阻止或镇压: to put down a rebellion 镇压叛乱

5 to kill an animal because it is old, sick or dangerous （因其年老、生病或有危险性而）杀死动物: The dog was put down after it attacked a child. 那条狗给杀掉了，因为它袭击过一个小孩。