noun: (nautical) A pointed tool without any sharp edges, used in weaving or knotwork to tighten and form up weaves or complex knots; used in sailing ships to open the strands of a rope before splicing. Compare marlinespike.
noun: (nautical) A square bar of wood or iron, with a shoulder at one end, to support the weight of the topmast (on a ship).
noun: A plug of oakum for the vent of a gun.
noun: A small thick piece of anything.
noun: A wooden or metal bar or pin, used to support or steady anything.
noun: (nautical, slang) The penis.
verb: To support a topmast using a fid.
noun: A British worker with the British Antarctic Survey
