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 film * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro *

Lock (waltz) There are several types of lock step in waltz dancing, including International Standard waltz. A " lock step" is when the moving foot approaches to the standing foot and crosses in front of or behind it, creating a "check" position. There are sever ...

, a dance figure * ''Locked'' (miniseries), Indian web miniseries * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * ''Locks'' (album), by Garnet Crow, 2008

People

Lock (surname) Lock is a surname, and may refer to: * Bob Lock (born 1949), Welsh science fiction and fantasy writer * Charles Lock (1770–1804), British consul-general in Naples who quarrelled with Admiral Horatio Nelson regarding the latter's military ac ...

* Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" *

George Locks George Melbourne Locks (24 May 1889 – 17 September 1965) was an English cricketer who played for Essex. He was born in Leytonstone and died in Redbridge. Locks made two first-class appearances for Essex during the 1928 season, the first, ...

(1889–1965), English cricketer * Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr.

Places

Lock, Ohio Lock is an unincorporated community in Knox and Licking counties in the U.S. state of Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of n ...

, an unincorporated community in the United States * Lock, South Australia, a small town in the center of the Eyre Peninsula *

Lock Island Lock Island is an island in the River Thames in England connected to Shepperton Lock, near Shepperton. Facing the attached by lock-gate bridge mainland is a hedge-lined lawn hosting a café, below and above zones of free short-stay moorings. T ...

, an island in the River Thames in England * Lock Island (Nunavut), an island Peel Sound in Nunavut, Canada

Sports

Lock (rugby league) A rugby league team consists of thirteen players on the field, with 4 substitutes on the bench. Each of the thirteen players is assigned a position, normally with a standardised number, which reflects their role in attack and defence, although pl ...

, a player position in rugby league, known as loose forward in the United Kingdom *

Lock (rugby union) In the game of rugby union, there are 15 players on each team, comprising eight forwards (wearing jerseys numbered 1–8) and seven backs (numbered 9–15). In addition, there may be up to eight replacement players "on the bench", numbered 16– ...

, a player position in rugby union *Lock, any of several grappling holds in wrestling, judo and other martial arts

Technology

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 File locking is a mechanism that restricts access to a computer file, or to a region of a file, by allowing only one user or process to modify or delete it at a specific time and to prevent reading of the file while it's being modified or deleted ...

, 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 lock of a firearm is the mechanism used to initiate firing. It is a historical term, in that it generally refers to such mechanisms used in muzzle-loading and early breech-loading firearms. Side-lock refers to the type of construction, in whi ...

, 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) A Constantly Computed Impact Point (CCIP) is a calculation provided by a weapon's sighting system. It is a predicted point of impact found from the launch platform's movement, the target's movement, gravity, projectile launch velocity, projectile ...

, missile navigation system's target acquisition fix *

Fermentation lock A fermentation lock or airlock is a device used in beer brewing and wine making that allows carbon dioxide released during fermentation to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation. There are t ...

, a device in beer and wine making that allows carbon dioxide to escape while not allowing air to enter *

Rope lock In a theater fly system, a rope lock is a device used to prevent a rope, and the line set it controls, from moving. A rope lock is controlled by a steel handle that engages the lock when vertical and releases it when horizontal. The handle is ty ...

, a device used in theater fly systems

Other uses

Lock of hair A lock of hair is a piece or pieces of hair that has been cut from, or remains singly on, a human head, most commonly bunched or tied together in some way. A standard dictionary definition defines a lock as a tress, curl, or ringlet of hair. Sy ...

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