Something used for fastening, which can only be opened with a key or combination.
(by extension) A mutex or other token restricting access to a resource.
A segment of a canal or other waterway enclosed by gates, used for raising and lowering boats between levels.
The firing mechanism.
Complete control over a situation.
Something sure to be a success.
A player in the scrum behind the front row, usually the tallest members of the team.
A fastening together or interlacing; a closing of one thing upon another; a state of being fixed or immovable.
A place from which egress is prevented, as by a lock.
A device for keeping a wheel from turning.
A grapple in wrestling.
A tuft or length of hair, wool etc.
A small quantity of straw etc.
A quantity of meal, the perquisite of a mill-servant.
To become fastened in place.
To fasten with a lock.
To be capable of becoming fastened in place.
To intertwine or dovetail.
(break dancing) To freeze one's body or a part thereof in place.
To furnish (a canal) with locks.
To raise or lower (a boat) in a lock.
To seize (e.g. the sword arm of an antagonist) by turning the left arm around it, to disarm him.
To modify (a thread) so that users cannot make new posts in it.
(WMF jargon) To prevent a page from being edited by other users.