HULLThe shell, or plating, of a ship from keel to
HULL DOWNRefers to a ship that is so far over the
horizon that only its superstructure or top hamper
INBOARDToward the centerline.
INHAUL LINELine used to haul the trolley back to
the delivering ship during highline transfers.
INLETA narrow strip of sea extending into the
INSHOREClose to the shore.
IRISH PENNANTLoose, untidy end of line left
adrift. Also called a deadman or cows tail.
ISLANDSuperstructure on the starboard side of the
flight deck of an aircraft carrier.
JACKStarred blue flag (representing the union of
the ensign) flown at the jackstaff of a
commissioned ship not under way.
JACKSTAFFVertical spar at the stem to which the
jack is hoisted.
JACKSTAYAny horizontal line or wire for the
support of articles (such as seabags).
JACOBS LADDERA portable rope or wire ladder.
JETTYA structure built out from shore to influence
water currents or to protect a harbor or pier.
JUMP SHIPThe act of deserting ship.
JURY RIGAny makeshift device or apparatus.
KAPOKMaterial used to stuff life jackets and other
KEDGE(1) A small anchor. (2) The act of moving a
ship by hauling it ahead by heaving in on a line to a
KEELThe lowermost longitudinal strength
member from which the frames and plating rise.
KEEL BLOCKOne of a series of blocks along a
drydock bed; used to support the keel of a vessel in
KEELSONThat part of a boats keel that is inside
KING POSTOne of a pair of short, strong uprights
used to support the cargo booms of cargo vessels.
KING SPOKESpoke on the steering wheel thats
upright when the rudder is amidships; usually
distinctively marked, as with a Turks head.
KNOCK OFFQuit working.
KNOT(1) A unit of measurement of speed equal to 1
nautical mile (6,080 feet) per hour. (2) A collective
term for hitches and bends.
LADDERA shipboard flight of steps.
LANDING CRAFTVessels especially designed for
landing troops and equipment directly on a beach.
LANDING SHIPA large seagoing ship designed
for landing large numbers of personnel and/or
heavy equipment directly on a beach.
LANYARD(1) Any short line used as a handle or as
a means for operating some piece of equipment.
(2) A line used to attach an article to the person,
such as a pistol lanyard.
LASHTo secure an object by turns of line, wire, or
LASHINGLine, wire, or chain used to lash an
LASH-UPAn uncomplimentary term applied to a
rig, device, or system meaning its in disorder. For
example, What a lash-up they have there.
LAUNCH(1) To float a vessel off the ways in a
building yard. (2) A power boat, usually over 30
LAY(1) To go to a specific place, such as Lay
aloft. (2) To put something down, as to lay tile. (3)
The direction of a twist of the strands in a line or
LEAD LINEA narrow block of lead weighing from
7 to 14 pounds attached to a marked line. Used by
leadsman to determine depth of water.
LEADSMANPerson who uses the lead line.
LEEAn area sheltered from the wind; downwind.
LEE HELMSMANA spare helmsman who usually
operates the annunciator.
LEE SHOREA shore that is leeward of the ship.
LEEWARD(Pronounced loo-urd.) Side of the ship
opposite to the direction the wind is blowing from.
LIBERTYPermission to be absent from a ship or
station for a short time.