1a sudden short sound caused by a blow, especially on a door to attract attention or gain entry.
[mass noun] a continual thumping or rattling sound made by an engine.
2a blow or collision:the casing is tough enough to withstand knocks
a discouraging experience; a setback:the region’s industries have taken a severe knock
informal a critical comment.
3 Cricket, informal an innings, especially of an individual batsman:a splendid knock of 117 against Somerset
ზმნა
Universal
1 [no object] strike a surface noisily to attract attention, especially when waiting to be let in through a door:he strolled over and knocked on a door marked Enquiries
strike or thump together or against something:her heart knocked painfully behind her ribs
(of a motor or other engine) make a regular thumping or rattling noise, e.g. through pinking.
2 [with object] collide with (someone or something), giving them a hard blow:he deliberately ran against her, knocking her shoulder [no object]:he knocked into an elderly man with a walking stick
[with object and adverbial of direction] force to move or fall with a deliberate or accidental blow or collision:he’d knocked over a glass of water
injure or damage by striking:she knocked her knee painfully on the table figurativeyou have had a setback that has knocked your self-esteem
make (a hole or a dent) in something by striking it forcefully:you’ll need to knock a hole in the wall
demolish the barriers between (rooms or buildings):two of the downstairs rooms had been knocked into one
British informal prevent an idea, plan, or proposal from being developed or carried out:the fond belief that the weather is always better in California than in Europe was firmly knocked on the head this week