PIN

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

Pin or PIN may also refer to:

Computers and technology

 * Personal identification number (PIN), to access a secured system
 * PIN pad, a PIN entry device
 * PIN, a Dutch debit card by currence
 * An image on Pinterest
 * PIN diode, a semiconductor diode
 * Pin, a short lead in electronics
 * Pinning, the act of attaching a social media post to the top of a page to signify importance. This function is implemented on platforms such as Twitter and Reddit
 * To pin an object to another object, such as pinning an application to the taskbar

Awards, brooches, or fasteners

 * Award pin, recognising an achievement
 * Bobby pin or kirby grip or hair grip, a hairpin
 * Clevis pin, a three-piece fastener system
 * Collar pin, for a shirt collar
 * Drawing pin or thumbtack
 * Lapel pin, a small pin worn on clothing
 * Safety pin, pin which includes a simple spring mechanism and a clasp
 * Split pin or cotter pin, a fastener

Music and film

 * Pin (harp) a Cambodian harp
 * Pin (film), 1988, Canada
 * "Pin" (song), by the Yeah Yeah Yeahs, 2003
 * The Pin (comedy act), on BBC Radio 4
 * "The Pin", a song from the Goo Goo Dolls' album Boxes
 * Bridge pin, on a keyboard musical instrument

Sports and games

 * Pin (amateur wrestling), holding an opponent down
 * Pin (professional wrestling), wrestling move
 * Pin (bridge), a maneuver in the game of bridge
 * Pin (chess), when a defending chess piece cannot move without exposing a more valuable defending piece
 * Bowling pin, the target of the bowling ball in various bowling games
 * Gabriele Pin (born 1962), Italian footballer

Other

 * Pin, Haute-Saône, Haute-Saône, France
 * Police Information Notice, UK
 * Postal Index Number, postal code of locations in India
 * PIN Group, a German postal company
 * People in Need (Czech Republic), an organization
 * Paleontological Institute, Russian Academy of Sciences, Moscow, Russia
 * PIN proteins in plants
 * Progressive inflammatory neuropathy, a disease
 * Prostatic intraepithelial neoplasia, an abnormality of prostatic glands
 * Center pin, on railway vehicles
 * Dowel or dowel pin
 * Pin, half a firkin in English brewery cask units
 * Preferred IUPAC name, a chemical name