Catherine-wheel /kathˈ(ə-)rin-(h)wēl/

1. A rotating firework
2. A rose window (architecture)
3. A wheel set round with teeth (heraldry)
4. A sidewise somersault

• koker
• kokers
• kokra
• kokras
• kok-saghyz
• kokum
• kokum butter
• kokums
• kola
• Kolarian
• kolas
• kolinskies
• kolinsky
• kolkhoz
• kolkhozes
• kolkhozy
• Kol Nidre
• kolo
• kolos
• komatik
• komatiks
• kombu
• kombus
• Kominform
• Komintern