FAST SAILER. A ship which, in nautical parlance, "has legs."

FAST STAYING. Quick in going about.

FAT, or Broad. If the tressing in or tuck of a ship's quarter under water hangs deep, or is overfull, they say she has a fat quarter.

FATHER. The dockyard name given to the person who constructs a ship of the navy.

FATHER-LASHER. A name of the scorpius or scorpion, Cottus scorpius, a fish about 9 inches long, common near rocky coasts.

FATHOM [Anglo-Saxon, fædm]. The space of both arms extended. A measure of 6 feet, used in the length of cables, rigging, &c., and to divide the lead (or sounding) lines, for showing the depth of water.—To fathom, is to ascertain the depth of water by sounding. To conjecture an intention.

FATHOM-WOOD. Slab and other offal of timber, sold at the yards, by fathom lots: cubic measurement.

FATIGUE-PARTY. A party of soldiers told off to any labour-duty not strictly professional.

FAULCON. A small cannon. (See [Falcon].)

FAUN. Anglo-Norman for a flood-gate or water-gate.