A set of wires used for long-distance electric power transmission; a power transmission line.

The chain of transportation mechanisms supplying food and materiel to an army in battle, or other field operation. / (by extension) Any system in place to provide resources to a group.

(military, army) The notional line on either side of which opposing forces are arrayed, and at which they meet in battle; a fortified line, short of the line where battle is expected, and behind which forces are arrayed; a forward line of infantry or other force, prepared for battle.

A very heavy rope or chain by which a ship's anchor is hoisted.

A wire strung between two locations allowing telegraphic communication between them.

The infrastructure which allows a single telephone to be connected to the network and conduct independent calls.

A line on a graph, drawn through points that vary widely, that shows the general trend of a real-world function; often generated using linear regression

Alternative spelling of fault line

(geology) The line formed by the intersection of the plane of a fault with the surface of the Earth / (by extension) A minor split (in public opinion etc) that may develop into something larger

(idiomatic, transitive) To state strongly, clearly, and accurately. / (idiomatic, transitive) To risk.