knock on
Phrasal Verb: - To strike a surface with one's knuckles or a hard object to produce a sound, typically to gain entry or attention: The core action of hitting something, usually a door or window, to create an audible signal. - (Rugby) To cause the ball to move forward illegally with the hand or arm: A specific rule infringement in rugby where a player propels the ball toward the opponent's dead-ball line.
To gain entry or attention:
- Please knock on the door before entering.
- I heard someone knock on the window.
(Rugby) To commit a forward knock-on:
- The referee penalized the player for a knock-on.
- A knock-on resulted in a scrum for the other team.
"To knock on wood" (Idiom): To perform a superstitious action (touching wood) to avoid bad luck after mentioning good fortune.
- I haven't been sick all year, knock on wood!
"To knock on the door of opportunity" (Figurative): To seek or be close to achieving a new opportunity.
- With her new degree, she is knocking on the door of a great career.
Knock-on effect (Noun - chiefly British): A secondary, indirect, or cumulative effect.
- The factory closure had a knock-on effect on local businesses.
Knock (Verb/Noun): The base form meaning to strike or the sound produced.
- Knocker (Noun): A device on a door for knocking.
- Rap: To strike quickly and sharply.
- Tap: To strike gently.
- Knock about/around: To spend time idly or to treat roughly.
- Knock back: To drink quickly or to reject.
- Knock down: To demolish or to reduce a price.
- Knock out: To render unconscious or to eliminate from a competition.
- Knock over: To overturn or to rob.
- Knock 'em dead: To impress an audience greatly.
- Knock it off: A command to stop doing something.
- Knock on heaven's door: To be near death (often used figuratively).
- (rugby) knocking the ball forward while trying to catch it (a foul)