fid

noun6

1. •
   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.
2. •
   A square bar of wood or iron, with a shoulder at one end, to support the weight of the topmast (on a ship).
3. •
   A wooden or metal bar or pin, used to support or steady anything.
4. •
   A small thick piece of anything.
5. •
   (slang) The penis.
6. •
   A plug of oakum for the vent of a gun.

verb1

1. •
   To support a topmast using a fid.

noun1

1. •
   Initialism of functional iron deficiency.

noun1

1. •
   (slang) A British worker with the British Antarctic Survey.

   • The British use the term “fidlets”, a diminutive of “Fid”, which in turn is an acronym for Falkland Island Dependencies, the former name of the British Antarctic Survey. — 2024

noun1

1. •
   Abbreviation of fidelity.