knock

Fist on wood

Knock is to strike a surface, usually to make a sound or gain attention: She knocked on the door.

By extension, to knock is to hit or bump into something: I knocked my head on the shelf.

To knock someone or something is to criticize: Don't knock it till you've tried it.

A knock is the sound or impact itself.

In engines, knock is an abnormal pinging from premature ignition.

To knock off is to stop work, or to produce something quickly, or to kill.

To knock out is to render unconscious.

To knock up is British for wake by knocking, or informal American for make pregnant.

sound

thud

Dull impact noise

  • bangSudden loud noise
  • tapValve controlling liquid flow
  • rapQuick sharp blow

thump · clunk · clatter · slam · pounding · rapping · tapping · rat-a-tat · hammering · drumming

impact

blow

Move air forcefully

  • hitSuccessful contact or strike
  • bumpSlight collision or protrusion
  • collisionForceful contact between objects

jolt · strike · smash · bash · wallop · whack · thump · clout · slam · contact

injury

bump

Slight collision or protrusion

  • bruiseDiscolored tissue injury
  • blowMove air forcefully
  • bangSudden loud noise

lump · welt · contusion · scrape · goose egg · sore · swelling

door

rapping

Rhythmic vocal delivery

threshold · answer · houseguest · peephole · doorknob · porch · foyer · housecall · caller · delivery

rhythm

beat

Rhythmic pulse or strike

  • pulseArterial blood throb
  • tempoRate of musical performance
  • cadenceRhythmic pulse or pattern

drumming · pattern · rapping · tapping · syncopation · percussion · meter · timing

criticism

disparagement

Criticism meant to diminish

objection · disapproval · rebuke · censure · putdown · negativity · skepticism · naysaying · dismissal · detraction

opportunity

chance

Likelihood of occurrence

possibility · door opening · invitation · threshold · access · entry · gateway · window · moment

Categories
Opposites
criticism vs. praise

knockpraise

Expression of approval

compliment · laud · extol · commend · applaud

physical striking action

knockmiss

Fail to reach

avoid · dodge · skirt · evade · sidestep

misfortune vs. good fortune

knockluck

Chance affecting outcomes

break · windfall · godsend · blessing · stroke of luck

Phrases
Family

knockout, knocking, knocked, knock down, knocker, knocks, knockoff, knock over, knock off

Familiarity
Top 3,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G