KO or k.o.

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

To knock out

A knockout

• leap days
• leaped
• leaper
• leaperous
• leapers
• leapfrog
• leapfrogged
• leapfrogging
• leapfrogs
• leaping
• leaping-house
• leaping-houses
• leaping-time
• leaping-times
• leap in the dark
• leap on the bandwagon
• leaporous
• leaprous
• leaps
• leap second
• leap seconds
• leapt
• leap year
• leap years
• lear