coulter or (esp N American) colter /kōlˈtər or (Scot) kooˈtər/

The iron cutter in front of a ploughshare

• klutzier
• klutziest
• klutziness
• klutzy
• klystron
• klystrons
• km
• KM
• K-meson
• km/h
• kn.
• knack
• knacker
• knackered
• knackeries
• knackering
• knackers
• knacker's yard
• knackery
• knackier
• knackiest
• knackiness
• knackinesses
• knackish
• knacks