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View synonyms for knife

knife

[ nahyf ]

noun

plural knives
  1. an instrument for cutting, consisting essentially of a thin, sharp-edged, metal blade fitted with a handle.
  2. a knifelike weapon; dagger or short sword.
  3. any blade for cutting, as in a tool or machine.


verb (used with object)

knifed, knifing.
  1. to apply a knife to; cut, stab, etc., with a knife.
  2. to attempt to defeat or undermine in a secret or underhanded way.

verb (used without object)

knifed, knifing.
  1. to move or cleave through something with or as if with a knife:

    The ship knifed through the heavy seas.

knife

/ naɪf /

noun

  1. a cutting instrument consisting of a sharp-edged often pointed blade of metal fitted into a handle or onto a machine
  2. a similar instrument used as a weapon
  3. have one's knife in someone
    to have a grudge against or victimize someone
  4. twist the knife
    to make a bad situation worse in a deliberately malicious way
  5. the knives are out for someone
    people are determined to harm or put a stop to someone

    the knives are out for Stevens

  6. under the knife
    undergoing a surgical operation
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to cut, stab, or kill with a knife
  2. to betray, injure, or depose in an underhand way
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • ˈknifeˌlike, adjective
  • ˈknifer, noun
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Other Words From

  • knifelike adjective
  • knifer noun
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Word History and Origins

Origin of knife1

before 1100; Middle English knif, Old English cnīf; cognate with Dutch knijf, German Kneif, Old Norse knīfr
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Word History and Origins

Origin of knife1

Old English cnīf; related to Old Norse knīfr, Middle Low German knīf
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Idioms and Phrases

Idioms
  1. under the knife, in surgery; undergoing a medical operation:

    The patient was under the knife for four hours.

More idioms and phrases containing knife

see at gunpoint (knifepoint) ; under the knife ; you could cut it with a knife .
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Example Sentences

Though it was inspired by a spate of real-world knife attacks — the sort of material that might invite sensationalism or prompt a heavy-handed lecture — “Adolescence” avoids both.

Police said they opened fire after she moved toward them with a knife.

So while you are looking for your phone as you’re on it, you are still making sure your child doesn’t fall or grab a knife.

"Clifford has again shown himself to be a coward. Clifford armed himself with a crossbow and knife in order to attack three innocent women," he said.

From BBC

Making “Adolescence” is Graham’s effort to open the conversation around knife crime in the U.K. and masculinity, a more universal topic that’s come to the fore in the social media age.

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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