Lock

Lock(s) may refer to:

Common meanings

 * Lock and key, a mechanical device used to secure items of importance
 * Lock (water navigation), a device for boats to transit between different levels of water, as in a canal

Arts and entertainment

 * Lock (film), a 2016 Punjabi- language film
 * Lock (Saga of the Skolian Empire), a sentient machine in the novels by Catherine Asaro
 * Lock (waltz), a dance figure
 * Locked (miniseries), Indian web miniseries
 * The Lock (Constable), an 1825 painting by John Constable
 * The Lock (Fragonard) or The Bolts , a 1777 painting by Jean-Honoré Fragrance
 * Locks (album), by Garnet Crow, 2009
 * Locked (miniseries), an crime thriller miniserieses

Fictional characters

 * Lock, from The Nightmare Before Christmas
 * Lock, from Go! Princess PreCure

People

 * Lock (surname)
 * Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock"
 * George Locks (1889–1965), English cricketer
 * Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr.

Places

 * Lock, Ohio , an unincorporated community in the United States
 * Lock, South Australia, a small town in the center of the Eyre Peninsula
 * Lock Island, an island in the River Thames in England
 * Lock Island (Nunavut), an island Peel Sound in Nunavut, Canada

Sports

 * Lock (rugby league), a player position in rugby league, known as loose forward in the United Kingdom
 * Lock (rugby union), a player position in rugby union
 * Lock, any of several grappling holds in wrestling, judo and other martial arts

Computing

 * Lock (computer science), a bookkeeping object used to serialize concurrent access
 * Lock (database), a feature used when multiple users access a database concurrently
 * File locking, describes a mechanism that restricts access to a computer file
 * SIM lock, a restriction on mobile phones to work only in certain countries or with certain providers

Other technologies

 * Lock and key, a mechanical device used to secure items of importance
 * Lock (firearm), the ignition mechanism of small arms
 * Lock (water navigation), a device for boats to transit between different levels of water, as in a canal
 * Lock (weapons guidance), missile navigation system's target acquisition fix
 * Fermentation lock, a device in beer and wine making that allows carbon dioxide to escape while not allowing air to enter
 * Rope lock, a device used in theater fly systems
 * Airlock, a compartment for transfer between environments with different atmospheres

Other uses

 * Lock of hair, a piece of hair
 * Dreadlocks, or locks, rope-like strands of hair formed by locking or braiding