CARRY ON-An order to resume previous activity after
an interruption; usually after personnel have come
CAST OFF-An order given to let go, or throw off,
mooring lines from a bollard or cleat.
CHAFING GEAR-Canvas, line, or other material
placed around rigging and mooring lines to prevent
CHAIN LOCKER-Compartment for stowage of
CHAIN OF COMMAND-(1) The succession from
superior to subordinate through which command is
exercised (2) The succession from subordinate to
superior through which requests should go.
CHAIN PIPE-The tube in the deck through which the
anchor cable leads to the chain locker.
CHARTHOUSE-The compartment on or near the
bridge used by the navigator for the handling and
stowage of navigational equipment.
CHECK-To keep a strain on a line but to ease out only
enough to prevent its parting.
CHOCK-A metal fitting that serves as a lead for lines
to a pier or to other ships. It may be open or closed.
CHRONOMETER-An accurate clock used in
CHURCH PENNANT-A blue and white pennant
flown above the ensign during church services on
board a Navy ship.
CLAMP DOWN-To sprinkle the deck with water and
swab it down. Distinguished from swabbing, which
uses a wet mop frequently doused and wrung out in
buckets of water.
CLEAT-A metal fitting with two projecting arms to
which lines are belayed.
CO-Abbreviation for commanding officer.
COAMING -A name given to any raised framework
around deck or bulkhead openings or cockpits of
open boats to prevent entry of water.
COIL- To lay down a line in circular turns piled loosely
on top of one another.
COLORS-(1) The American flag. (2) The ceremony of
raising the flag at 0800 and lowering it at sunset
aboard a ship not underway, or at a shore station.
COMPARTMENT -An interior shipboard space
enclosed by bulkheads, in which personnel work
COMPARTMENT CHECK-OFF LIST-A list of
fittings, their location, and function in a
compartment for a specific purpose.
COXCOMBING -Fancy knot work consisting of coils
of line worked around a tiller handle, stanchion, and
COXSWAIN -Enlisted person in charge of a small boat.
DAMAGE CONTROL-Measures necessary to
preserve shipboard watertight integrity, stability,
and offensive power; to control list and trim; to limit
the spread of, and provide adequate protection from,
fire; to limit the spread of, remove contamination
by, and provide adequate protection from, toxic
agents, and to care for wounded personnel.
DAMAGE CONTROL CENTRAL/CENTRAL
CONTROL STATION (DCC) (CCS)-
compartment located in a protected location from
which measures for control of damage and
preservation of the ship's fighting ability are
DARK ADAPTATION-Eyes become accustomed to
darkness in order to have good night vision.
DARKEN SHIP-Blocking out all lights visible from
outside the ship.
DAVIT(S)-A fixed or movable crane that projects over the
side of a ship. Used in pairs to handle boats. Some of
the tragic losses of life during nautical disasters were
traceable to lifeboat davits that could not be operated
properly under existing circumstances (improper
maintenance, overloading, panicky passengers, and
DEAD AHEAD-Directly ahead; bearing 000° relative.
DEAD ASTERN Directly aft, bearing 180° relative.
DEAD IN THE WATER-Said of a vessel that has
stopped and has no way on, but is not moored or
DEAD RECKONING (DR)-A method of navigation
using direction and amount of progress from the last
determined position to a near dead reckoning or DR.
DECK-A floor in a ship. The uppermost complete deck
is the main deck. Decks often derive their name