FID
- a square bar used to support the topmast [n -S]
- bar or pin used as a key or toggle
- a tapered usually wooden pin used in opening the strands of a rope
- stout bar of wood or metal placed across a lower spar so as to support a higher one
- a square bar used as a support for a topmast [n FIDS]
- stout bar used to hold a running bowsprit in its extended position
- wooden or metal pin for parting strands of a rope