n. A strip of wood or iron fastened on transversely to something in order to give strength, prevent warping, hold position, etc.n. A continuous metal strip, or angled piece, used to secure metal components.n. A device to quickly affix a line or rope, and from which it is also easy to release.n. A protrusion on the bottom of a shoe meant for better traction. (See cleats.)v. To strengthen with a cleat.v. To tie off, affix, stopper a line or rope, especially to a cleat