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A knife is a metal tool with a sharpened metal blade that is used to cut all sorts of things. The plural form of "knife" is "knives."
Types of knives
- Cooking or kitchen knives: also known as the chef's knife. Several types of knives are used in cooking. Kitchen knives are sharp knives with wood or plastic handles used for chopping food and meat that is going to be cooked.
- Table knives: These knives are used to cut up food for eating. Some table knives are sharper than others, but none are as sharp as kitchen knives. Steak knives are sharper because they need to cut steak. Fish knives and butter knives are also used at the table and have rounded blades that are not sharp.
- Hunting knives are used for skinning animals.
- Fishing knives are used for cutting open fish.
- Construction knives and utility knives are used for cutting vinyl flooring, insulation, plastic sheathing, and carpet.
Picking the right type of knife
There are many kinds of knives, depending what is to be cut. With the right knife, the cuts you want to make will happen faster and more easily. With the wrong kind of knife, it will take more effort to perform the same amount of work. When a knife is too small to cut something, a saw, axe, or power tool may be needed.
Illegal types of knives
Carrying knives is illegal in many countries, especially if the blade is longer than several inches. Another type of knife which is illegal in many places is the "switchblade," a knife that has a button which when pressed activates a spring to open the knife.