cleat (Noun) — A metal or leather projection (as from the sole of a shoe); prevents slipping.
cleat (Noun) — A fastener (usually with two projecting horns) around which a rope can be secured.
cleat (Noun) — A strip of wood or metal used to strengthen the surface to which it is attached.
cleat (Verb) — Provide with cleats. ex. "cleat running shoes for better traction"
cleat (Verb) — Secure on a cleat. ex. "cleat a line"