FID

n. peg; conical wooden pin used to splice strands of rope

A fid is a hollow spike for use in splicing.FID can mean:International Federation for Information and DocumentationFinancial Institutions Duty, an Australian taxFlame ionization detector, instrument for analysing gas compositionthe free induction decay of excited atomic nucleiFree indirect discourse, see Free indirect speechPeople on bird forums speak of their birds as "fids"
See more at Wikipedia.org...

A fid is a conical tool made of wood or bone. It is used to work with rope and canvas in marlinespike seamanship. A fid differs from a marlinspike in material and purpose. A marlinespike is meant to pry and is normally made of metal. A fid is used to hold open knots and holes in canvas.
See more at Wikipedia.org...

FID

= FID (Fédération Internationale de Documentation), International Federation for Documentation (FID).
Ex: The Fédération Internationale de Documentation (FID) is the international body with overall responsibility for the revision and maintenance of UDC.
Ex: BSO was prepared by the International Federation for Documentation with the support of UNESCO (United Nations Educational, Scientific, and Cultural Organization), and was published in 1978/79.

n.
1. (Naut.)
ايک لکڑي يا لوہے کا لٹھا جو مستول کے کام ميں آتا ہے
2. a wooden or metal bar or pin
چوبي يا دھات کي سوئي, ميخ يا پچر