DECONTAMINATE -To free from harmful residue of
chemical or nuclear attack.
DETAIL-To assign personnel to a particular duty
within their duty station.
DIP-To lower the national ensign about one-third of the
way, then raising it, as a salute to a passing warship.
DIP THE EYE-Passing the eye of a line through that
of another line and then around a bollard.
DIVISION-The basic unit into which personnel are
organized aboard ship, in aircraft squadrons, or at
DOG WATCH-One of two 2-hour watches; 1600-1800
DOUBLE UP-To double mooring lines for added
DOWNHAUL-Line or wire that pulls an object
DOWSE-(1) To put out. (2) To lower a sail quickly. (3)
Wet down or immerse in water.
DRAFT-The depth of a ship beneath the waterline,
measured vertically to the keel.
DRAFT MARKS-Numeral figures on either side of the
stem and stern, used to indicate the amount of the
DRILL-A training exercise in which actual operation
DRY RUN-A rehearsal of any kind.
DRYDOCK-A watertight basin that allows
examination and work on the bottom of a ship.
DUNNAGE-Any material used to separate (or insulate)
layers of cargo, create space for cargo ventilation,
or insulate cargo against chafing.
EASE-To do something slowly, as move slowly away
from the pier or ease the strain on a line.
EASE HER (the rudder)-Reduce the amount of rudder
the ship is carrying. Generally, an order given as the
ship approaches the desired course.
EIGHT O'CLOCK REPORTS-Reports received
shortly before 2000 by the executive officer from
the department heads. In turn, they make eight
o'clock reports to the commanding officer.
EMERGENCY DRILL-A rehearsal of the action to be
taken by ship's crew in an emergency, such as fire
ENGINE ORDER TELEGRAPH-A device on the
ship's bridge to give engine orders to the engine
EXECUTIVE OFFICER-The officer second in
EXTRA DUTY-Additional work assigned by the CO
as authorized by the Uniform Code of Military
EYES OF THE SHIP-The most forward part of the
forecastle on the weather deck
FAIRLEAD-A fitting, such as a block, providing a
passage free of friction for a line or cable.
FANTAIL-The after-most deck area topside in a ship.
FATHOM -A measure of length equal to 6 feet, used
especially for measuring the depth of water.
FENDER-A device of canvas, wood, rubber or plastic
slung over the side of a ship to absorb the shock of
contact between the ship and the pier or between
FID-A sharply pointed, round wood or metal tool used
in separating the strands of a line for splicing.
FIELD DAY-A particular day devoted to general
cleaning, usually in preparation for inspection.
FIRST CALL-A routine call sounded as a warning
signal 5 minutes before morning and evening colors
and other ceremonies.
FIRST LIEUTENANT-The officer aboard ship
responsible for the upkeep and maintenance of the
ship, its boats, ground tackle, and deck seamanship
FIRST WATCH-The 2000-2400 watch.
FLARE-A pyrotechnic device used to attract attention
or illuminate an area.
FLUKES-The broad arms or palms of an anchor.
FORECASTLE -The forward section of the weather
FOXTAIL-A short-handled brush.
FRAMES-Athwartships strengthening members of a
ship's hull, numbered from bow aft, and used as
reference points to locate fittings, compartments,
FRAPPING LINES-Lines passed around the forward
and aft boat falls to steady the boat when hoisting