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1 Construction

A pin is a device used for fastening objects or material together.

2 Electronics

In Electronics a pin is an electric interconnection. For example a metal wire coming out of an Integrated circuit or Transistor.

3 Trade

Someone whose trade is making pins is called a pinner.

4 Sports

The term pin is used in multiple sports and strategy games:

• In bowling, pins must be knocked down by the bowling ball
• In chess, pin refers to preventing a piece from moving by threatening the king
• In wrestling, pinning a person means holding him against the ground

5 Society

PIN is also used as an acronym for

• Personal Identification Number
• Postal Index Number (India)

6 Firearms

In firearms, the firing pin is a nail-like device to transfer hammer energy to the primerThe percussion cap or primer was the crucial invention needed to make fire-arms that could fire in any weather. Before this development, firearms used igniters with flints or matches to set fire to a pan of gunpowder. A primer is a small, disposable coppe of ammunition56 mm ammunition Ammunition is a generic military term meaning (the assembly of) a projectile and its propellant. It is derived through French from the Latin munire (to provide). For rifles and handguns, it is called bullets. For large caliber guns, it is

7 See also

• Operation PinOperation Pin is an alleged sting operation set up by the UK's National Crime Squad, the FBI, Interpol, the Royal Canadian Mounted Police and the Australian Hi-Tech Crime Centre. Its stated aim is to identify pedophiles who are using the internet to acces
• thumbtackA thumbtack is a short nail or pin with a large, slightly rounded head made of metal which is used to fasten documents to a background for public display and which can easily be removed by hand. In the UK thumbtacks are usually called drawing-pins . As fa
• badgeA Badge is a device, patch, or accoutrement which is presented or displayed to annote some feat of service, a special accomplishment, or as a simple means of identification. In the military, badges are often used to denote qualifications recieved through