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Index of Abbreviations (U.S.)

Abbreviations


A B C D E F G H I K L M N O P Q R S T U V W Y


 
  A

  AERO, Aero   Aero light   Aero RBn   Aeronautical radiobeacon
  AERO RC   Aeronautical radiobeacon   Al   Alternating
  ALP   Articulated Loading Platform   Alt   Alternating
  Am   Amber   anc   ancient
  ANCH, Anch   Anchorage  
 

 
  B

  B   Bay, bayou   Bdy Mon   Boundary monument
  bk   Broken   Bkw   Breakwater
  Bl   Blue   BM   Benchmark
  Bn   Beacon   Bn Tr   Beacon tower
  Br   Breakers   brg   Bearing
  brk   Broken   Bu   Blue

 
  C

  c   Course   C   Can, cylindrical
  C   Cove   CALM   Centenary Anchor Leg Mooring
  Cas   Castle   Cb   Cobbles
  cbl   Cable   cd   Candela
  CD   Chart datum   Cem   Cemetery
  CG   Coast Guard station   Chan   Channel
  Ch.   Church   Chy   Chimney
  Cl   Clay   CL   Clearance
  cm   Centimeter(s)   Co   Coral
  Co rf   Coral reef   Cr   Creek
  crs   Course   Cup, Cup.   Cupola
  Cus Ho   Customs house   Cy   Clay

 
  D

  D   Destroyed   Destr   Destroyed
  dev   Deviation   DIA, Dia   Diaphone
  Dir   Direction   dist   Distant
  dm   Decimeter(s)   Dn.   Dolphin
  Dol   Dolphin   DW   Deep Water route
  DZ   Danger Zone  
 

 
  E

  E   East, eastern   ED   Existence doubtful
  EEZ   Exclusive Economic Zone   E Int   Equal interval, isophase
  Entr   Entrance   Est   Estuary
  exper   Experimental   Explos   Explosive
  Exting, exting   Extinguished  
 

 
  F

  f   Fine   F   Fixed
  Fd   Fjord   F Fl   Fixed and flashing
  FISH   Fishing   Fl   Flashing
  Fla   Flare stack   fm   Fathom
  fms   Fathoms   fne   Fine
  Fog Det Lt   Fog detector light   Fog Sig   Fog signal
  FP   Flagpole   FS, FS.   Flagstaff
  ft   Foot, feet  
 

 
  G

  G   Gravel   G   Green
  G   Gulf   Gp Fl   Group flashing
  Gp Occ   Group occulting  
 

 
  H

  h   Hard   h   Hour
  H   Pilot transferred by helicopter   HAT   Highest astronomical tide
  Hbr Mr   Harbormaster   Historic Wk   Historic wreck
  Hk   Hulk   Hor   Horizontally disposed
  Hosp   Hospital   hr   Hour
  hrd   Hard  
 

 
  I

  IALA   International Association of Lighthouse Authorities   In   Inlet
  Intens   Intensified   IntQkFl   Interrupted quick flashing
  IQ   Interrupted quick flashing   I Qk Fl   Interrupted quick flashing
  Iso   Isophase   IUQ   Interrupted ultra quick

 
  K

  km   Kilomter(s)   kn   Knot(s)

 
  L

  L   Loch, lough, lake   Lag   Lagoon
  LANBY   Large Automatic Navigational Buoy   Lat, lat   Latitude
  LASH   Lighter aboard ship   LAT   Lowest astronomical tide
  Ldg   Landing   Ldg   Leading
  Le   Ledge   L Fl   Long flashing
  Lndg   Landing   LNG   Liquefied natural gas
  Long, long   Longitude   LOP   Line of position
  LPG   Liquefied petroleum gas   LSS   Life-saving station
  Lt   Light   Lt Ho   Lighthouse
  Lt V   Light vessel  
 

 
  M

  m   Meter(s)   m   Minute(s) of time
  m   Medium (in reference to sand)   M   Mud, muddy
  M   Nautical mile(s)   mag   Magnetic
  MHHW   Mean higher high water   MHLW   Mean higher low water
  MHW   Mean high water   MLWN   Mean high water neaps
  MHWS   Mean high water springs   Mi   Nautical mile(s)
  min   Minute of time   Mk   Mark
  MLHW   Mean lower high water   MLLW   Mean lower low water
  MLW   Mean low water   MLWN   Mean low water neaps
  MLWS   Mean low water springs   mm   Millimeter(s)
  Mo   Morse   MON, Mon   Monument
  MSL   Mean sea level   Mt   Mountain
  Mth   Mouth  
 

 
  N

  N   North, northern   N   Nun
  NE   Northeast   NM   Nautical mile(s)
  N Mi   Nautical mile(s)   No   Number
  Np   Neap tide   NW   Northwest
  NWS SIG STA   Weather signal station  
 

 
  O

  Obsc   Obscured   Obscd   Obscured
  Obs spot   Observation spot   Obstn   Obstruction
  Obstr   Obstruction   Oc   Occulting
  Occ   Occulting   Occas   Occasional
  ODAS   Ocean Data Acquisition System   Or   Orange

 
  P

  P   Pebbles   P   Pillar
  PA   Position approximate   Pass   Passage, pass
  PD   Position doubtful   PLT STA   Pilot station
  Pk   Peak   Post Off   Post office
  Priv, priv   Private   Prod. Well   Production well
  PROHIB   Prohibited   Pyl   Pylon
  P   Pebbles   P   Pillar
  PA   Position approximate   Pass   Passage, pass
  PD   Position doubtful   PLT STA   Pilot station
  Pk   Peak   Post Off   Post office
  Priv, priv   Private   Prod. Well   Production well
  PROHIB   Prohibited   Pyl   Pylon

 
  Q

  Q   Quick flashing   Qk Fl   Quick flashing

 
  R

  R   Coast radio station providing QTG services   R   Red
  R   Rocky   Ra   Radar reference line
  Ra (conspic)   Radar conspicuous object   Ra Antenna   Dish aerial
  Racon   Radar transponder beacon   Radar Sc.   Radar scanner
  Radar Tr.   Radar tower   Radome, Ra Dome   Radar dome
  Ra Ref   Radar reflector   RBn   Circular radiobeacon
  RC   Circular radiobeacon   Rd   Roads, roadstead
  RD   Directional radiobeacon   RDF   Radio direction finding station
  Ref.   Refuge   Rep   Reported
  Rf   Reef   RG   Radio direction finding station
  Rk   Rock   Rky   Rocky
  R Mast   Radio mast   Ro Ro   Roll on Roll off
  R Sta   Coast radio station providing QTG services   R Tower   Radio tower
  Ru   Ruins   RW   Rotating radiobeacon

 
  S

  S   Sand   S   South, southern
  S   Spar, spindle   s   Second of time
  SALM   Single Anchor Leg Mooring   SBM   Single Buoy Mooring
  Sc   Scanner   Sd   Sound
  SD   Sounding doubtful   SE   Southeast
  sec   Second of time   sf   Stiff
  sft   Soft   Sh   Shells
  Shl   Shoal   Si   Silt
  so   Soft   Sp   Spring tide
  SP   Spherical   Sp.   Spire
  Spipe   Standpipe   SPM   Single point mooring
  SS   Signal station   st   Stones
  stf   Stiff   stk   Sticky
  Str   Strait   Subm   Submerged
  Subm piles   Submerged piles   Subm ruins   Submerged ruins
  sy   Sticky   SW   Southwest

 
  T

  T   True   t   Metric ton(s)
  Tel   Telephone, telegraph   Temp, temp   Temporary
  Tk   Tank   Tr, Tr., TR   Tower
  TT   Treetops   TV Mast   Television mast
  TV Tower   Television tower  
 

 
  U

  Uncov   Uncovers   UQ   Ultra quick

 
  V

  v   Volcanic   var   Variation
  Vert   Vertically disposed   Vert Cl   Vertical clearance
  Vi   Violet   Vil   Village
  VLCC   Very large crude carrier   vol   Volcanic
  VQ   Very quick   V Qk Fl   Very quick flash

 
  W

  W   West, western   W   White
  Wd   Weed   WGS   World Geodetic System
  Whf   Wharf   WHIS, Whis   Whistle
  Wk   Wreck  
 

 
  Y

  Y   Yellow