Guy

(gī), n. [Sp. guia, guide, a guy or small rope used on board of ships to keep weighty things in their places. See GYE, GIE, and GUIDE.]

1. A rope attached to any thing to steady it, and bear it one way and another in hoisting or lowering.
2. (Engineering.) A rope or rod, generally a wire-rope, attached to any thing to steady it, and especially to steady and prevent undulations in a suspension-bridge.