KO or k.o.

1. Kick-off
2. Knockout
3. Knock out

To knock out

A knockout

• twenties
• twentieth
• twentieths
• twenty
• twenty-five
• twenty-fives
• twentyfold
• twentyfolds
• twenty-four
• twenty-four-hour
• twenty-four-hour clock
• twenty-fourmo
• twenty-fours
• twenty-four-seven
• twenty-four-seven usu written 24–7
• twentyish
• twenty-one
• twenty-ones
• twenty-twenty
• twenty-two
• twenty-twos
• 'twere
• twerk
• twerked
• twerking