Knob/nɑːb/ Definition 1 of 4Pro Tip 1/2Physical Action The word 'knob' often implies physical turning or pulling motion when used with doors and drawers. She gripped the knob and pulled the drawer open. Pro Tip 2/2Commonly Found 'Knob' is a common term in houses or buildings, often found in daily conversation. Can you install a new knob on this cabinet?