Knockin

Part of speech: verb

Definitions

1. Making a sharp sound by striking a surface, used informally as a shortened form of the action
2. To cause noise by repeatedly hitting something, often at a door, expressed in a casual or colloquial way
3. Producing a tapping or banging noise, typically by hitting an object, conveyed in an informal context

Etymology: "Knockin'" is the informal spelling of "knocking," the present participle of "knock," with the final g dropped as it is in relaxed speech. "Knock" comes from Old English "cnocian," probably imitative of the sound of a sharp rap.

Synonyms: knocking, tapping, rapping, pounding, banging

Antonyms: silence, quiet, stillness, calm, peace