An act in which something is knocked on, or the sound thus produced
1893, W. B. Yeats, The Celtic Twilight Chapter , These strange openings and closings and knockings were warnings and reminders from the spirits who attend the dying.
1901, Carson Jay Lee, Oswald Langdon Chapter , There was no response to continued knockings.
2006, July 21, Keith Harris, Monica Kendrick, Peter Margasak, Bob Mehr, Miles Raymer, Neil Tesser, The Treatment, Recorded live to CD with new instrumentation--artillery shells, tuned suspension cables, boxes filled with springs--and deemphasized guitar parts, it's a beautiful collection of echoes and whispers, drones and knockings, with a gently swelling sense of the sinister.
