CARRY ON-An order to resume previous activity after an interruption; usually after personnel have come to  attention. 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 wear. CHAIN  LOCKER-Compartment  for  stowage  of anchor  cable. 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 navigation. 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 and live. 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 so forth. 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)- A compartment located in a protected location from which  measures  for  control  of  damage  and preservation  of  the  ship's  fighting  ability  are directed 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 inexperienced crews). 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 anchored 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 from  construction. AI-4