Meaning of knock sth out In English

• 0 to produce something quickly without spending time thinking about the details:

  • I've knocked out a first draft of the report that we can amend at a later date.

• 1 If something such as a piece of equipment is knocked out by something else, it stops working or is damaged or destroyed:

  • The surge in the power supply knocked out all the computers.

  • Enemy aircraft have knocked out 25 tanks.

• 2 to produce something quickly without spending time thinking about the details:

  • Modern computer games take a long time to develop; you can no longer knock one out in three months.

• 3 to stop a machine, system, etc. from working:

  • Powerful storms knocked out electricity to more than a million customers in the area in July.