a general sense, the act of imparting something to another.

Communication is also used for the connection of one thing with another, or the passage from one place to another: thus a gallery is a communication between two apartments.

Communication of motion, the act whereby a body at rest is put into motion by a moving body; or, it is the acceleration of motion in a body already moving.

Lines of Communication, in military matters, trenches made to continue and preserve a safe correspondence between two forts or posts; or at a siege, between two approaches, that they may relieve one another.

Canal of Communication. See Canal.