knife -
A utensil or a tool designed for cutting, consisting of a flat piece of hard material, usually steel or other metal the blade, usually sharpened on one edge, attached to a handle. The blade may be pointed for piercing.
knife -
A weapon designed with the aforementioned specifications intended for slashing and/or stabbing and too short to be called a sword. A dagger.
knife -
Any blade-like part in a tool or a machine designed for cutting, such as the knives for a chipper.
Verb
knife -
To cut with a knife.
knife -
To use a knife to injure or kill by stabbing, slashing, or otherwise using the sharp edge of the knife as a weapon.
knife -
To positively ignore, especially in order to denigrate. compare cut.
Wikipedia
A knife is any cutting edge or blade, handheld or otherwise, with or without a handle. Knives were used at least two-and-a-half million years ago, as evidenced by the Oldowan tools. Originally made of rock, flint, and obsidian; knives have evolved in construction as technology has with blades being made from bronze, copper, iron, steel, ceramics, and titanium.
OmegaWiki Dictionary
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knife A utensil consisting of a sharpened piece of hard material such as steel or other metal, ceramic, glass or stone, usually attached to a handle, that is formed in a manner that allows for cutting softer materials, especially meat or other food.
knife To cut with a knife.
knife To use a knife as a weapon in order to injure or kill.