What does "cleat" mean?

Cleat: (Naut.) A device made of wood or metal, having two arms, around which turns may be taken with a line or rope so as to hold securely and yet be readily released. It is bolted by the middle to a deck or mast, etc., or it may be lashed to a rope.

Additional senses

  1. 2.To strengthen with a cleat.

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