The sound or action of tapping on a door to gain entry.
SoundActionDoorCommunication
Current best complexity is 12:
Knock can be discovered in Concepts, categorized under Sound, Action, Door, Communication. The sound or action of tapping on a door to gain entry.
It has been discovered by 1 board and crafted 1 time, first appearing 3 days ago. Knock can be created from 1 recipe, and goes on to appear as an ingredient in 1 other.
Knock was first discovered by Skitsboard 3 days ago. They also hold the lowest-complexity recipe, at 12.
Related concepts worth exploring include Thunder, Echo, Waterworld, Echo Chamber, Thunderclap, Reverberation, and 6 more.