door·knob 
(dôrnŏb′)
(dôrnŏb′)n.
A knob-shaped handle for opening and closing a door.
- correspondently
- corresponding
- correspondingly
- corresponsive
- corresponsively
- corrida
- corrido
- corridor
- corridors of power
- corrie
- Corriedale
- Corrientes
- Corrigan
- corrigendum
- corrigibility
- corrigible
- corrigibly
- corrival
- corrivalry
- corroborant
- corroborate
- corroboration
- corroborative
- corroborator
- corroboratory