WordofTheDay.US

knocking

/ˈnɑkɪŋ/ verb

verb Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about knocking at Wordnik → Where our words come from →

  1. present participle and gerund of knock

noun

  1. An act in which something is knocked on, or the sound thus produced
  2. A repetitive ping, knock, or similar sound coming from an engine in which there are repeated uncontrolled explosions in the combustion chamber.