KO or k.o.

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

To knock out

A knockout

• pillions
• pillion-seat
• pillion-seats
• pilliwinks
• pillock
• pillocks
• pilloried
• pillories
• pillorise
• pillorised
• pillorises
• pillorising
• pillorize
• pillorized
• pillorizes
• pillorizing
• pillory
• pillorying
• pillow
• pillow-beer
• pillow-bere
• pillow-block
• pillowcase
• pillowcases
• pillow-cup