plural of lock time

A small amount of air in a pipe that stops liquid flowing through it.

The holding by a temporary substitute of a post.

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

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

present participle of lock down

(transitive) To secure; to make people stay locked indoors for their safety. / (transitive) To limit the use of a computer network to only users with permission.

plural of local board

An administrative board operating in a local government; specifically:

(physics) The use of mode-locked lasers to generate ultrashort pulses of light