Lock

Lock may refer to:

• Lock (surname)

Mechanical devices

• Lock (device), a mechanical device used to secure possessions
• Lock (firearm), the ignition mechanism used on early projectile weapons
• Lock (water transport), an enclosure in a navigable canal or river which enables ships and boats to pass between sections of the waterway at different levels

Technology

• Lock (computer science), a bookkeeping object associated with a piece of data that is used to serialize concurrent access
• Lock (database), a feature used when multiple users access a database concurrently
• Lock (weapons guidance), an indication the missile seeker system has a suitable or adequate acquisition fix to hit successfully if launched

Sport

• Lock (rugby league), a player position in rugby league
• Lock (rugby union), a player position in rugby union

Entertainment

• Lock (Saga of the Skolian empire), a fictional sentient machine in the novels by Catherine Asaro

Other

• Lock of hair, a tuft or small bundle of hair
• Lock, South Australia, a small town located in the centre of the Eyre Peninsula

See also

• -lock, an article about the Old English suffix
• Locke, a common English surname and place name
• Loch, a Gaelic term used in Scotland to describe lakes and other bodies of water
• Locked (single), by Mutha's Day Out
• Locking (disambiguation)
• Lox, cured salmon filet