What is the meaning of Fid?

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.

A square bar of wood or iron, with a shoulder at one end, to support the weight of the topmast (on a ship).

A plug of oakum for the vent of a gun.

A small thick piece of anything.

A wooden or metal bar or pin, used to support or steady anything.

The penis.

To support a topmast using a fid.

tree

wood, timber

letter of an alphabet

vowel

food

Soft mutation of bid.

Source: wiktionary.org