Locks are devices that provide security and safety for our possessions. There are other words which can be used to describe locks in different situations. For instance, padlocks, deadbolts, latches, and bolts are types of locks that are commonly used to secure different types of doors. Safes, vaults, and strongboxes are used to store valuable items securely. Combination locks, keypads, and fingerprint scanners are examples of modern locks that use advanced technology for access control. The word "lock" can also be used in a figurative sense, such as to describe someone who is firm and unwavering in their beliefs or decisions. Synonyms for this meaning include steadfast, resolute, determined, and immovable.