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1

knife

play
noun, often attributive \ˈnīf\

Simple Definition of knife

  • : a usually sharp blade attached to a handle that is used for cutting or as a weapon

Source: Merriam-Webster's Learner's Dictionary

Full Definition of knife

plural knives play \ˈnīvz\

  1. 1 a :  a cutting instrument consisting of a sharp blade fastened to a handle b :  a weapon resembling a knife

  2. 2 :  a sharp cutting blade or tool in a machine

  3. 3 :  surgery 4 —usually used in the phrase under the knife

knifelike play \ˈnīf-ˌlīk\ adjective

Examples of knife in a sentence

  1. Each dinner guest gets two forks, a knife, and a spoon.

  2. He pulled a knife on me and threatened to stab me with it.



Origin of knife

Middle English knif, from Old English cnīf, perhaps from Old Norse knīfr; akin to Middle Low German knīf knife


First Known Use: before 12th century

Other Weapons and Explosives Terms

Rhymes with knife


2

knife

verb

Simple Definition of knife

  • : to injure (someone) with a knife

  • : to move easily and quickly like a knife cutting through something

Source: Merriam-Webster's Learner's Dictionary

Full Definition of knife

knifedknifing

  1. transitive verb
  2. 1 :  to use a knife on; specifically :  to stab, slash, or wound with a knife

  3. 2 :  to cut, mark, or spread with a knife

  4. 3 :  to try to defeat by underhanded means

  5. 4 :  to move like a knife in <birds knifing the autumn sky>

  6. intransitive verb
  7. :  to cut a way with or as if with a knife blade <the cruiser knifed through the heavy seas>

Examples of knife in a sentence

  1. He died after being knifed in the chest.

  2. ships knifing through the waves



1865

First Known Use of knife

1865



KNIFE Defined for Kids

1

knife

play
noun \ˈnīf\

Definition of knife for Students

plural knives \ˈnīvz\

  1. 1 :  a cutting instrument consisting of a sharp blade fastened to a handle

  2. 2 :  a cutting blade in a machine




2

knife

play
verb

Definition of knife for Students

knifesknifedknifing

  1. :  to stab, slash, or wound with a knife




Medical Dictionary

knife

play
noun \ˈnīf\

Medical Definition of knife

plural knives \ˈnīvz\play

  1. 1:  any of various instruments used in surgery primarily to sever tissues: asa:  a cutting instrument consisting of a sharp blade attached to a handleb:  an instrument that cuts by means of an electric current

  2. 2:  surgery 3—usually used in the phrase under the knife <went under the knife yesterday> <was afraid of the knife>





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