(construction) a method of interlocking metal panels in which one panel edge is folded back on top of itself and the other panel is folded under, after which the two panels are hooked together.

(waterways) A simple single-gate lock on a river or canal.

A set of locks on a waterway canal which rise steeply, and consisting of lock gates where the top gate of one lock is also the bottom gate of the next lock, not having a pound between each level.

(US, UK, idiomatic) imprisoned with little or no chance of escape; locked up. / (US, UK, idiomatic) safely guarded; locked away.

In telegraphy, the source of power that actuates the telegraphic station recording instruments, as distinguished from the source of power that furnishes current to the line.

(statistics, probability) A single number used to characterize a batch, sample, or distribution or the position of an element of it.

plural of local battery

plural of measure of location

simple past tense and past participle of co-locate

(informal) To kiss on the lips; to engage in a French kiss.