Homonym: Lock (Locksmith)
A "lock" is a mechanical device used to secure objects, such as doors, cabinets, or safes. It typically consists of a bolt that can be moved into a locked or unlocked position. Locks can be operated using various methods, including keys, combinations, or electronic codes. They are designed to provide safety and prevent unauthorized access.
There are many types of locks, including padlocks, deadbolts, and smart locks. Each type serves different security needs and can be made from various materials, such as metal or plastic. The effectiveness of a lock often depends on its design and the quality of its construction.