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

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.

(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.

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

(medicine, neurology) A rare, severe physical disorder in which a person cannot speak and is paralyzed—with the possible exception of some voluntary eye movement—while their mental faculties remain fully intact.

(geology) A fault that does not slip due to high friction. Such faults accumulate stress which is finally released as an earthquake.

(historical) A kind of high-security axial wafer lock.

(slang) A state of extreme lethargy induced by marijuana.

Alternative form of sealocked.