Keywords: knock, knocking, door knock, rap
Sign Definition
As a Noun
1. The sound of someone hitting a door, window or wall with the knuckles of their closed fist. English = knock, knocking, door knock.
As a Verb or Adjective
1. To hit a door, window or a wall several times with the knuckles of your closed fist in order to attract someone's attention. English = knock, rap.