(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.

(idiomatic) To come into conflict.

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.

plural of lock in

(astronomy) Subject to tidal locking.

(astronomy) The locking of the rotation of a satellite (moon or planet) to its orbit, such that one side always faces the body around which it is orbiting.

(computing) A lock key on a computer keyboard, which, when pressed, causes all subsequently typed letters to be capitalised except those typed while holding the shift key.

(computing) A key on a standard extended keyboard which, when pressed, toggles the keys of the numeric keypad between cursor control functions and numeric digits.