knob
From Longman Dictionary of Contemporary EnglishRelated topics: Daily lifeldoce_902_dknobknob /nɒb $ nɑːb/ noun [countable] 1 Da round handle or thing that you turn to open a door, turn on a television etc He thought the door was locked, but he turned the knob and the door opened. a brass door knob I adjusted the volume knob and sat down.2 → a knob of something3 British English spoken not politeHBH a penis4 → with (brass) knobs onOrigin knob (1300-1400) Middle Low German knobbe