knock

Meanings

• the sound of knocking (as on a door or in an engine or bearing)
  • "the knocking grew louder"
• negative criticism
• a vigorous blow
  • "the sudden knock floored him"
• a bad experience
  • "the school of hard knocks"
• the act of hitting vigorously
• deliver a sharp blow or push :
  • "He knocked the glass clear across the room"
• rap with the knuckles
  • "knock on the door"
• knock against with force or violence
• make light, repeated taps on a surface
• sound like a car engine that is firing too early
• find fault with; express criticism of; point out real or perceived flaws
  • "Don't knock the food--it's free"

Synonyms

bang, bash, belt, bump, criticise, criticize, knocking, pick apart, ping, pink, rap, roast, smash, strike hard, tap, whack, whang