plural of lock in

A lock situated between an enclosed basin or a canal and the tide water of a harbor or river, when they are on different levels, so that craft can pass either way at all times of the tide

(firearms) The time, usually measured in milliseconds, from when the trigger is pulled until the firing pin strikes the primer.

Preventing something from becoming stuck or jammed. Especially applies to anti-lock brakes, which are designed to continue rotating for better steering control while slowing the vehicle, rather than "locking" and causing the car to skid.

(transitive) To imprison or incarcerate (someone). / (transitive) To invest in something long term. / (intransitive) To close all doors and windows (of a place) securely.

A lock, typically on a door in a bank vault, that cannot be unlocked before a specified time.

(US, slang) A command to prepare a weapon for battle. / (US, slang) Prepare for an imminent event.

(US, slang) To prepare one's weapon. / (US, slang) To prepare for an imminent event.

The technique of twisting the ankle of someone already down, in order to keep them down, under the painful threat of an injury to their ankle that will mar them for life.

(idiomatic) To come into conflict.