knife

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knife:

see cutlerycutlery,
various types of implements for cutting, preparing, and eating food. In addition to different kinds of knives and the steels to sharpen them, the term usually encompasses forks and spoons.
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Knife

 

a cutting instrument in the shape of a plate with a sharp edge (blade). The oldest knives (thin flint plates with a cutting edge) became known in the Upper Paleolithic period.

With the introduction of metalworking, flint knives were gradually replaced by copper and bronze knives; however, they did not disappear entirely until iron knives came into widespread use with the beginning of the Iron Age. The use of iron knives fostered the development of several trades, particularly those associated with the working of wood and bone. Knives used in viniculture were also known in antiquity.

The technology of making knives from iron had attained a high level of development by the end of the first millennium A.D. Knives with laminated, self-honing blades appeared at that time (for example, in Rus’). The inner part of such blades was made of high-carbon steel, and the outer part was made of iron. The softer outer metal wore off with use; the harder steel plate protruded through the blade, and the knife remained sharp. By the early 12th century production of knives became widespread; the complex technology of making laminated blades was replaced by the simpler process of making knives with a welded steel blade. Concurrently, an increasing number of special types of knives were being produced. Later, with the introduction of industrial production processes, the term “knife” also came to mean a cutting member of tools and machines.

What does it mean when you dream about a knife?

A knife can signify the need to cut to the quick, to lay open one’s innermost fears. It may indicate being “stabbed in the back” or being the victim or perpetrator of an act of violence. A knife in a dream is also often seen as a male sexual symbol, and is generally associated with aggression.

knife

[nīf]
(design engineering)
A sharp-edged blade for cutting.

Knife

(dreams)
This tool does not have positive connotations. It may reflect the unrest and difficulty that you are experiencing. If you are self-mutilating, consider your actions and/or addictions. Take a hint from your unconscious and modify or discontinue your harmful thoughts or actions.
References in classic literature ?
Whet, whet, whet,--Humphrey Van Weyden sharpening his knife in a ship's galley and trying its edge with his thumb
At the end of two hours Thomas Mugridge put away knife and stone and held out his hand.
You find the old woman, Blake, and if she can't furnish the knife, go and search the twins
You know that wonderful Indian knife that the twins have been making such a to-do about?
Withdrawing the knife that had so often rendered him master of far mightier muscles than his own, Tarzan of the Apes placed his foot upon the neck of his vanquished enemy, and once again, loud through the forest rang the fierce, wild cry of the conqueror.
His relentless foe was pushing him hard, beat-ing at him furiously with the heavy knife.
Then the priestess, standing above him, began reciting what Tarzan took to be an invocation, the while she slowly raised her thin, sharp knife aloft.
The knife was quite near to Tarzan's breast now, but it halted for an instant as the high priestess raised her eyes to shoot her swift displeasure at the instigator of this sacrilegious interruption.
But the knife had fortunately, we ought to say skillfully, come in contact with the steel busk, which at that period, like a cuirass, defended the chests of women.
At this injunction from his superior, Felton obeyed; but in going out, he put the knife into his bosom.
The fetish man waved his hands and drew a step nearer to Trent, his knife outstretched.
Trent stooped down and, picking up the knife, cut the bonds which had bound the boy.