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knock out

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KNOCKOUT
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knock

  [nok]
Use knock out in a Sentence
–verb (used without object)
1. to strike a sounding blow with the fist, knuckles, or anything hard, esp. on a door, window, or the like, as in seeking admittance, calling attention, or giving a signal: to knock on the door before entering.
2. to strike in collision; bump: He knocked into a table.
3. to make a pounding noise: The engine of our car is knocking badly.
4. Informal. to engage in trivial or carping criticism; find fault.
5. Cards. to end a game, as in gin rummy, by laying down a hand in which those cards not included in sets total less than a specific amount.
–verb (used with object)
6. to give a sounding or forcible blow to; hit; strike; beat.
7. to drive, force, or render by a blow or blows: to knock a man senseless.
8. to make by striking a blow or blows: to knock a hole in the wall.
9. to strike (a thing) against something else.
10. Informal. to criticize, esp. in a carping manner: He's always knocking everything.
11. British Slang. to astound; impress greatly.
–noun
12. an act or instance of knocking.
13. the sound of knocking, esp. a rap, as at a door.
14. a blow or thump.
15. Informal. an adverse criticism.
16. the noise resulting from faulty combustion or from incorrect functioning of some part of an internal-combustion engine.
17. Cricket. an innings.
18. British Slang.
a. one of a combination of dealers who bid together, rather than against each other, at an auction, and later resell the purchases among themselves.
b. an auction at which this is done.
c. the sale of merchandise recently obtained by a dealer at an auction.
—Verb phrases
19. knock around or about, Informal.
a. to wander aimlessly or idly; loaf.
b. to mistreat (someone), esp. physically.
c. to jar; shake up.
20. knock back, Slang. to drink (a beverage), esp. quickly and heartily: He knocked back two shots of vodka.
21. knock down,
a. to sell at auction by a blow of the hammer or to a bidder.
b. to take apart or disassemble, as for facility in handling, storing, shipping, etc.
c. Slang. to receive, as a salary or a scholastic grade; earn: He knocks down 30 grand a year.
d. Informal. to lower the price of; reduce: to knock down end-of-season leftovers.
e. Slang. to embezzle or steal (money).
f. to cause (a sailing vessel) to heel, as by a gust of wind, to such a degree that it cannot right itself.
22. knock off,
a. Informal. to cease activity, esp. work: to knock off at five every day.
b. to stop doing something; quit: Knock it off or you'll get into a mess.
c. Slang. to dispose of; finish.
d. Slang. to murder; kill.
e. Slang. to die.
f. Slang. to get rid of; reduce.
g. Slang. to disable or defeat.
h. Slang. to commit a robbery at; steal from: The gang knocked off a gas station.
i. Nautical Slang. to blow the head (of a sailing vessel) off the wind.
j. to imitate, copy, or plagiarize: to knock off designer dresses in cheap materials.
23. knock out,
a. to defeat (an opponent) in a boxing match by striking such a blow that the opponent is unable to rise within the specified time.
b. to render (a person) unconscious: Those sleeping pills knocked me out for ten hours.
c. to make tired or exhausted: Christmas shopping always knocks me out.
d. Informal. to produce quickly, hurriedly, or with ease: He knocks out two poems a day.
e. to damage or destroy: The explosion knocked out the power for several hours.
f. knock (def. 28).
24. knock over,
a. to strike (someone or something) from an erect to a prone position: to knock over a lamp.
b. to distress; overcome: When the announcement came we were completely knocked over.
c. Slang. to rob, burglarize, or hijack: He knocked over five banks.
25. knock together, to make or construct in a hurry or with little attention to detail: He knocked together a couple of tables.
26. knock up,
a. Slang. to make pregnant.
b. to exhaust; weary; tire.
c. to damage; mar: The children knocked up the new table.
d. to injure; wound: He was afraid to come home from school all knocked up again.
e. British. to wake up; rouse; call: He knocked us up before dawn.
—Idioms
27. have it knocked, Slang. to be assured of success: With a government job, he thought he had it knocked.
28. knock out of the box, Baseball. to cause a pitcher to be removed from the box because the pitcher has permitted too many hits to be made. Also, knock out.
29. knock the or one's socks off, Informal. to have an overwhelming effect on: The song knocked the socks off the audience.
Origin:
bef. 1000; 1890–95 for def. 4; ME knokken, knoken (v.), OE cnocian, cnucian; c. ON knoka to thump, knock

Related forms:
knockless, adjective

Synonyms:
1. See strike.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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KNOCKOUT
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knock   (nŏk)   
v.   knocked, knock·ing, knocks

v.   tr.

  1. To strike with a hard blow.

  2. To affect in a specified way by striking hard: knocked the mugger senseless.

  3. To cause to collide: I knocked my head on a low beam.

  4. To produce by hitting or striking: knocked a hole in the wall.

  5. To instill with or as if with blows: We tried to knock some sense into his head.

  6. Slang To find fault with; criticize: Don't knock the food; it's free.

v.   intr.

  1. To strike a sharp audible blow or series of blows, as on a door.

  2. To collide with something: knocked into the table.

  3. To make a pounding or clanking noise: The car engine is knocking.

n.  

  1. An instance of striking or colliding; a blow.

  2. The sound of a sharp tap on a hard surface; a rap.

  3. A pounding or clanking noise made by an engine, often as a result of faulty fuel combustion. Also called ping1.

  4. Slang A cutting, often petty criticism.

  5. To be rough or brutal with; maltreat.

  6. To wander from place to place: knocking around Europe.

  7. To discuss or consider: met to knock around some ideas.

  8. To bring to the ground with a blow; topple.

  9. To disassemble into parts, as for storage or shipping.

  10. To declare sold at an auction, as by striking a blow with a gavel.

  11. Informal To reduce, as in price: knocked each radio down 20 percent.

  12. Slang To receive as wages; earn: knocks down $50 an hour.

  13. Informal

    1. To take a break or rest from; stop: knocked off work at noon.

    2. To cease work: It's after five; let's knock off.

  14. Informal To complete, accomplish, or dispose of hastily or easily; finish: That author knocks off a book a year.

  15. Informal To get rid of; eliminate: knocked off 12 pounds in a month.

  16. Slang To kill or overcome.

  17. Slang To hold up or rob: knocked off a bank.

  18. Informal To copy or imitate, especially without permission: knocking off someone else's ideas.

  19. To render unconscious.

  20. Sports To defeat (a boxing opponent) by a knockout.

  21. To render useless or inoperative: The storm knocked out the phones.

  22. Informal To exert or exhaust (oneself or another) to the utmost: knocked herself out to be ready on time.

  23. Informal To produce in abundance: The workers knocked out 500 parts in one hour.

  24. To inactivate or remove (a gene) by genetic engineering.

  25. Slang To make pregnant.

  26. Chiefly British To wake up or summon, as by knocking at the door.

  27. Chiefly British To wear out; exhaust.

Phrasal Verb(s):
knock around/about Informal

  1. To be rough or brutal with; maltreat.

  2. To wander from place to place: knocking around Europe.

  3. To discuss or consider: met to knock around some ideas.

knock back Informal To gulp (an alcoholic drink).
knock down

  1. To bring to the ground with a blow; topple.

  2. To disassemble into parts, as for storage or shipping.

  3. To declare sold at an auction, as by striking a blow with a gavel.

  4. Informal To reduce, as in price: knocked each radio down 20 percent.

  5. Slang To receive as wages; earn: knocks down $50 an hour.

knock off

  1. Informal

    1. To take a break or rest from; stop: knocked off work at noon.

    2. To cease work: It's after five; let's knock off.

  2. Informal To complete, accomplish, or dispose of hastily or easily; finish: That author knocks off a book a year.

  3. Informal To get rid of; eliminate: knocked off 12 pounds in a month.

  4. Slang To kill or overcome.

  5. Slang To hold up or rob: knocked off a bank.

  6. Informal To copy or imitate, especially without permission: knocking off someone else's ideas.

knock out

  1. To render unconscious.

  2. Sports To defeat (a boxing opponent) by a knockout.

  3. To render useless or inoperative: The storm knocked out the phones.

  4. Informal To exert or exhaust (oneself or another) to the utmost: knocked herself out to be ready on time.

  5. Informal To produce in abundance: The workers knocked out 500 parts in one hour.

  6. To inactivate or remove (a gene) by genetic engineering.

knock togetherTo make or assemble quickly or carelessly.
knock up

  1. Slang To make pregnant.

  2. Chiefly British To wake up or summon, as by knocking at the door.

  3. Chiefly British To wear out; exhaust.


Idiom(s):
have it knocked Slang To be certain of success: "He knew he had it knocked after he saw a rough cut of Chinatown" (Time).

Idiom(s):
knock coldTo render unconscious; knock out.

Idiom(s):
knock dead

  1. To kill with a blow.

  2. Slang To affect strongly and positively: a performance that knocked the audience dead.


Idiom(s):
knock it off Slang Quit it. Often used in the imperative: Knock it off! I'm trying to sleep.

Idiom(s):
knock (oneself) outTo make a great effort; exhaust oneself.

Idiom(s):
knock out of the box Baseball To force the removal of (an opposing pitcher) by heavy hitting.

Idiom(s):
knock the/someone's socks off Slang To overwhelm or amaze.

[Middle English knokken, from Old English cnocian.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang Dictionary
knock (so) out

  1. tv.
    to surprise someone. : Her stunning beauty knocked us all out.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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knock (sth) off

  1. tv.
    to manufacture or make something, especially in haste. (See also knock sth together.) : I'll see if I can knock another one off before lunch.
  2. tv.
    to lower the price of something; to knock off some dollars or cents from the price of something. : The store manager knocked 30 percent off the price of the coat.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
Cite This Source
knock (sth) out

and knock (sth) off
  1. tv.
    to write something quickly. : Would you please knock a speech out for the senator? , I knocked this little tune off, just for you, sweetie.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
Cite This Source
Word Origin & History

knock  (v.)
O.E. cnocian (W.Saxon cnucian), likely of imitative origin. Meaning "deprecate, put down" is from 1892. Knockoff "cheap imitation" is from 1966. Knock out "to stun by a blow for a 10-count" in boxing is short for to knock out of time; slang knockout "attractive person" is from 1892. To knock oneself out "make a great effort" is from 1936. Knock-kneed first attested 1774. Command knock it off "stop it" is first recorded 1902. Knocker "door banger" is from 1598; knockers "a woman's breasts" is from 1941. Knock up is 1663 in sense of "arouse by knocking at the door;" however it is little used in this sense in Amer.Eng., where the phrase means "get a woman pregnant" (1813), possibly ult. from knock "to copulate with" (1598; cf. slang knocking-shop "brothel," 1860).
"Knocked up in the United States, amongst females, the phrase is equivalent to being enciente, so that Englishmen often unconsciously commit themselves when amongst our Yankee cousins." [John Camden Hotten, "The Slang Dictionary," London, 1860]
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: knock
Pronunciation: 'näk
Function: noun
1 : a sharp blow knock to the head>
2 : a sharppounding noise
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Idioms & Phrases

knock out

  1. Also, knock out cold. Render unconscious by a blow or some other means. For example, It was just a swinging door, but it knocked her out, or Just one of those sleeping pills can knock you out cold. [Late 1500s]

  2. Make tired, exhaust, as in That sightseeing tour knocked me out.

  3. Render useless or inoperative, as in The storm knocked out the power.

  4. See knock off, def. 2.

  5. See knock oneself out.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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