Lock(s) or Locked may refer to:

Common meanings

Lock and key A lock is a mechanical or electronic fastening device that is released by a physical object (such as a key, keycard, fingerprint, RFID card, security token or coin), by supplying secret information (such as a number or letter permutation or p ...

, a mechanical device used to secure items of importance *

Lock (water navigation) A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a chamber in a permanently fixed position i ...

, a device for boats to transit between different levels of water, as in a canal

Arts and entertainment

* ''Lock'' (film), a 2016 Indian Punjabi-language film *

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 ...

, a dance figure * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro * ''Locks'' (album), by Garnet Crow, 2008 * ''Locked'' (film), a 2024 American thriller * ''Locked'' (miniseries), a 2020 Indian Telugu-language crime thriller *"Locked", a song by

Mutha's Day Out Mutha's Day Out was an American rock & heavy metal band formed in November 1991 from the town of Batesville, Arkansas. The band consisted of: Mikal Moore (vocals), Brice Stephens (vocals), Chuck Schaaf (guitar), Jeff Morgan (bass), and Rodney ...

from ''My Soul Is Wet'' (1993) * "Locked" (Incorrectly labeled “Gravity” in some places), a song by DJ3no made for the video game “ Ace Combat: Assault Horizon Legacy” (2011) *

LOCK Lock(s) or Locked 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 entertainme ...

, the stage name of Rokka Asahi, a fictional character from ''

BanG Dream! ''BanG Dream!'', also known as , is a Japanese music media franchise owned by Bushiroad. Created by Bushiroad president Takaaki Kidani in January 2015 with original story by Kō Nakamura, the project began as a manga before ex ...

Fictional characters

* Lock, from ''

The Nightmare Before Christmas ''The Nightmare Before Christmas'' (formerly known as ''Tim Burton's The Nightmare Before Christmas'') is a 1993 American stop motion Animation, animated Gothic film, gothic musical film, musical fantasy film directed by Henry Selick in his f ...

'' * Lock, from ''

Go! Princess PreCure , also known simply as ''Go! Princess PreCure'', is a 2015 Japanese magical girl anime series produced by Toei Animation, and the twelfth installment to Izumi Todo's ''Pretty Cure'' metaseries, featuring the tenth generation of Cures. It is ...

People

* Lock (surname) *

Ormer Locklear Ormer Leslie "Lock" Locklear (October 28, 1891 – August 2, 1920) was an American daredevil stunt pilot and film actor. His popular flying circus caught the attention of Hollywood, and he starred in ''The Great Air Robbery'' (1919), a scre ...

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

Places

* Lock, Ohio, an unincorporated community in the United States *

Lock, South Australia Lock is a town in the centre of Eyre Peninsula in South Australia. It is central Eyre Peninsula's main grain storage hub, as it is surrounded by a predominantly farming community, with emphasis on cereal crop production. The town has a hotel, ...

, 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. ...

, an island in the River Thames in England *

Lock Island (Nunavut) Lock Island is a member of the Arctic Archipelago in the territory of Nunavut. It lies in Peel Sound across the mouth of Browne Bay, between northeastern Prince of Wales Island and northwestern Somerset Island. Vivian Island lies to the so ...

, an island Peel Sound in Nunavut, Canada

Sports

Lock (rugby league) A rugby league team consists of 13 players on the field, with 4 interchange players on the bench. Each of the 13 players is assigned a position, normally with a standardised number, which reflects their role in attack and defence, although playe ...

, 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 hold A grappling hold, commonly referred to simply as a hold that in Japanese language, Japanese is referred to as ''katame-waza'' ( "grappling technique"), is any specific grappling, wrestling, judo, or other martial art grip that is applied to an ...

s in wrestling, judo and other martial arts

Technology

Computing

Lock (computer science) In computer science, a lock or mutex (from mutual exclusion) is a synchronization primitive that prevents state from being modified or accessed by multiple threads of execution at once. Locks enforce mutual exclusion concurrency control policies ...

, a bookkeeping object used to serialize concurrent access *

Lock (database) Record locking is the technique of preventing simultaneous access to data in a database, to prevent inconsistent results. The classic example is demonstrated by two bank clerks attempting to update the same bank account for two different transact ...

, 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 preventing reading of the file while it's being modified or delet ...

, describes a mechanism that restricts access to a computer file *

SIM lock A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific co ...

, a restriction on mobile phones to work only in certain countries or with certain providers

Other technologies

, 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 generally used as a historical term, referring to such mechanisms used in muzzle loader, muzzle-loading and early breech loader, breech-loading firearms, as modern firearms unif ...

, the ignition mechanism of small arms *

, 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 fermentation lock or fermentation 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 oxidati ...

, 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 An airlock is a room or compartment which permits passage between environments of differing atmospheric pressure or composition, while minimizing the changing of pressure or composition between the differing environments. An airlock consist ...

, a compartment for transfer between environments with different atmospheres *

Lockheed Martin The Lockheed Martin Corporation is an American Arms industry, defense and aerospace manufacturer with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta on March 15, 1995. It is headquartered in North ...

, a military aerospace company

Other uses

Lock of hair Lock(s) or Locked 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 entertainme ...

, a piece of hair *

Dreadlocks Dreadlocks, also known as dreads or locs, are a Hairstyle, hairstyle made of rope-like strands of matted hair. Dreadlocks can form naturally in Hair#Texture, very curly hair, or they can be created with techniques like twisting, Backcombing, ba ...

, or locks, rope-like strands of hair formed by locking or braiding