KO or k.o.

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

To knock out

A knockout

• piperazines
• piperic
• piperidine
• piperidines
• piperine
• piperines
• Pipe Roll
• piperonal
• piperonals
• pipers
• pipes
• pipe snake
• pipe snakes
• pipe-stapple
• pipe-stem
• pipe-stems
• pipestone
• pipestones
• pipe-stopple
• pipe-stopples
• pipe-track
• pipe-tracks
• pipe-tree
• pipe-trees
• pipette