1. 使减少；使降低
To knock off an amount from a price, time, or level means to reduce it by that amount.

2. 从（名单或文件中）删除
If you knock something off a list or document, you remove it.

3. 偷
If someone knocks something off, they steal it.

4. 偷；盗
To knock off a house, factory, or shop means to break into it and steal money or property.

5. 下班；收工
When you knock off, you finish work at the end of the day or before a break.

6. 杀死
If someone knocks someone else off, they kill them.

1. stop pursuing or acting

e.g. drop a lawsuit
knock it off!

Synonym: drop

2. get rid of (someone who may be a threat) by killing

e.g. The mafia liquidated the informer
the double agent was neutralized

Synonym: neutralizeneutraliseliquidatewastedo in

3. write quickly

e.g. She dashed off a note to her husband saying she would not be home for supper
He scratched off a thank-you note to the hostess

Synonym: dash offscratch offtoss offfling off

4. take by theft

e.g. Someone snitched my wallet!

Synonym: hooksnitchthievecopglom

5. cut the price of

Synonym: shave