1. Using foul or obscene language
   - foul-mouthed

See also: dirty

• knur
• knurl
• knurled
• Knut
• Knut Hamsun
• Knut Pedersen
• KO
• KO punch
• KO'd
• koala
• koala bear
• koan
• Koasati
• kob
• Kobe
• Kobenhavn
• kobo
• kobold
• Kobuk Valley National Park
• Kobus
• Kobus kob
• Kobus leche
• Koch
• Kochia
• Kochia scoparia