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Abaft: further aft than (the term "aft of" is not correct)
Aft: in the direction of the stern (rear)
Ahoy: A sailor's way of attracting attention, a hail e.g. "ahoy there"
All Standing: to bring something up "all standing" means to bring it to a sudden or unexpected halt.
Athwart: running from side to side
Avast: an order to stop, and can also be used in conversation to request silence.
Banyan: a party, usually a BBQ or a beach party held aboard ship
Barrack Stanchion: someone who has served for a long time ashore
Barge: a flag officer's boat (boat, not ship).
Batten down: to shut hatches or openings in the whole or part of a ship
Beam ends: when a ship is completely on its side. A person is at his beams ends when he is confused.
Belay: to make fast a rope end or to cancel an order
Berth: the correct place for a man or a ship
Between decks: any space below the upper deck
Bilge: nonsense or very bottom of the inside of the ship.
Boat: a submarine, a ferry or a ship's boat. Commissioned warships are never referred to as a boat.
Brick: a shell or projectile (missile or torpedo)
Bravo Zulu: a phrase to convey congratulations, well done
Brow: a gangway between two ships or from the ship to the jetty/dock
Bulkhead: a ship's wall
Buzz: a rumour
Cant: to incline away from the upright position
Capsize: to overturn
Captain: the Commanding Officer (CO) -- regardless of rank -- is referred to as "Captain."
CHODS: Chiefs of Departments
Clear: free, unobstructed, or to make free eg "to clear an anchor"
Close up: report to your station or when a flag is at full mast
Colours: ceremony held at 0800 when alongside or on naval bases to raise the National Flag and other formation flags or ensigns.
Coxswain or Cox'n: the senior NCO regardless of rank is known as the Cox'n, also the senior rating in charge of a boat.
Crack On: to increase speed
Cut of his jib: appearance of a person or ship.
Deck: floor or level in a ship
Deckhead: a ship's ceiling
Derelict: a ship abandoned by her crew but still afloat
Dhobey: laundry
Dip: to lower temporarily. The ensign is dipped or a person who is dipped is lowered in rank.
Divisions: Naval Parade, Ceremonial Divisons held in full uniform with medals
Doggie: a junior officer detailed to attend to a senior officer
Duff: dessert or when a piece of equipment is unserviceable
Easy: an order meaning to carry on what you are doing more carefully or slowly
Fit out: to rig or provide a ship, person or thing with its full outfit of stores and equipment
Forward: in the direction of the bow
Foul: to entangle or obstruct
Full Riggers:to be dressed in dress uniform with medals and, in most cases, with sword, cutlass or rifle.
Galley: the kitchen
Gangway: any recognized entrance to, passageway or traffic route within a ship.
Gash: garbage
Glim: a light
Gob: slang name for your mouth
Grog: one part rum to two parts water
Hands: members of the ships company
Hands Fall In: Hands required to duty stations, or an unceremonial form of Divisions when the CO or leadership wishes to pass orders or instructions
Heads: toilets
HODS: Heads of Departments
Hulk: a vessel inuse but condemned for sea service
Jacked up: to be corrected sternly
Jettison: to cast overboard
Jettsom: floating debris which was jettisoned from a ship
Jimmy: The XO
Jury rig: temporary, emergency or home made fix
Labour: a ship labours when she pitches and rolls heavily
Lay up: take a ship out of service
Lower Decks: usually used to refer to the place where non-commissioned members quarters/decks are located
Master: captain of a merchant vessel
Midships: in the middle of the ship, a helm order to bring the wheel to center
Number One: the XO
OPI: Office of Particular Interest, the person or office in charge of an event or evolution
Pipe: an announcement or order on the ship's broadcast system. "to make a pipe"
Port: left side of a ship, a helm order to steer to the left
Rig: order of dress
Rounds: any set of checks or inspections made in a routine manner. Evening rounds are made on-board by the XO and the Cox'n.
Rumour net: unsubstantiated intelligence also known as RUMINT, usually wrong intelligence.
Run down: to ram
Scran: food
Scran locker: storage place for personal gear found sculling (lost and found)
Secure: to make fast, to finish a task or duty e.g. secure Special Sea Duty men.
Secure for sea: lash down all equipment and stow personnel gear so it doesn't end up flying around in rough seas
Ship's company: all personnel of a warship
Sin Boatswain: slang for a Chaplain
Skipper: Captain of a submarine or small merchant vessel
Sliders: slang for leaving place of duty before official work hours are over.
Starboard: the right hand side, a helm order to steer to the right
Tiddley: neat, smart
Tot: a ration of rum
Underway: moving under power such that the helm can respond.
Weather decks: outside decks exposed to the elements, topside
Work Ups: exercise a ships' company
XO: the executive officer, who is second in command of the ship or establishment