Deadlock

Deadlock (computer science)

In concurrent computing, deadlock is any situation in which no member of some group of entities can proceed because each waits for another member, including itself, to take action, such as sending a message or, more commonly, releasing a lock. Deadlocks are a common problem in multiprocessing systems, parallel computing, and distributed systems, because in these contexts systems often use software or hardware locks to arbitrate shared resources and implement process synchronization.

Deadbolt

A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. It is distinct from a spring bolt lock because a deadbolt can only be opened by a key or handle. The more common spring bolt lock uses a spring to hold the bolt in place, allowing retraction by applying force to the bolt itself. A deadbolt can therefore make a door more resistant to entry without the correct key, as well as make the door more resistant to forced entry. A deadbolt is often used to complement a spring-bolt lock on an entry door to a building.

Deadlock (video game)

Deadlock is an upcoming third-person shooter and multiplayer online battle arena (MOBA) game developed and published by Valve. It is set in an alternate urban fantasy New York in the 20th century, featuring battles between two teams of six heroes trying to destroy each other's "Patron" gods as part of an occult ritual. Initially known as Neon Prime, Deadlock was leaked to the public in May 2024, and its Steam page was published in August. It has since remained an invite-only closed beta, reaching a peak concurrent player count of over 260,000 in October 2026.

deadlock

Noun

1. A standstill resulting from the opposition of two evenly matched forces; a stalemate or impasse.
2. An inability to continue due to two programs or devices each requiring a response from the other before completing an operation.

Verb

1. To cause or come to a deadlock.
2. To bring to a state of deadlock.