Supplementary National Abbreviations

A   A   Apartment         B   B   Black   bk   Black   bl   Black   Blds   Boulders   br   Brown   bu   Blue     C   Cap   Capitol   ch   Chocolate   Chec   Checkered   Ck   Chalk   Cn   Cinders   Co   Company   Co Hd   Coral head   COLREGS   Collision regulations   Corp   Corporation   cps   Cycles per second   CRD   Columbia River Datum   c/s   Cycles per second   Ct Ho   Court house         D   dec   Decayed   deg   Degree(s)   Di   Diatoms   Diag   Diagonal bands   Discol water   Discolored water   dk   Dark     E   Explos Anch   Explosives anchorage         F   Facty   Factory   F Gp Fl   Fixed and group flashing   fl   Flood   fly   Flinty   Fr   Foraminifera   Fu   Fucus     G   GAB, Gab   Gable   GCLWD   Gulf Coast Low Water Datum   Gl   Globigerina   glac   Glacial   gn   Green   Govt Ho   Government house   Grd   Ground   Grs   Grass   gty   Gritty   GUN   Fog gun   gy   Gray         H   HECP   Harbor entrance control point   HHW   Higher high water   HS   High school   ht   Height   HW   High water   HWF & C   High water full and change   Hz   Hertz         I   in   Inch   ins   Inches   Inst   Institute   ISLW   Indian springs low water     K   K   Kelp   kc   Kilocycle   kHz   Kilohertz   kn   Knot(s)     L   La   Lava   LLW   Lower low water   LOOK TR   Lookout tower   lrg   Large   lt   Light   Ltd   Limited   LW   Low water   LWD   Low water datum   LWF & C   Low water full and change         M   m²   Square meter(s)   m³   Cubic meter(s)   Ma   Mattes   Magz   Magazine   Mc   Megacycle(s)   Mds   Madrepores   MHz   Megahertz   Ml   Marl   Mn   Manganese   Mo   Morse code   Ms   Mussels   MTL   Mean Tide Level     N   NAUTO   Nautophone         O   or   Orange   Oys   Oysters   Oz   Ooze         P   Pav   Pavilion   Pm   Pumice   Po   Polyzoa   Pt   Pteropods     Q   Quar   Quarantine   Qz   Quartz     R   Rd   Radiolaria   rd   Red   rt   Rotten   Ry   Railway, railroad     S   Sc   Scoriae   Sch   Schist   Sch   School   Sem   Semaphore   Sh   Shingle   S-LFl   Short-long flashing   sml   Small   Spg   Sponge   Spi   Spicules   spk   Speckled   Stg   Sea-tangle   St M   Statute (mile)s   Str   Stream   str   Streaky   SUB-BELL   Submarine fog bell   Subm crib   Submerged crib   SUB-OSC   Submarine oscillator   Sub vol   Submarine volcano     T   T   Telephone   T   Short ton(s)   T   Tufa   Tel   Telegraph   Tel off   Telegraph office   ten   Tenacious     U   unev   Uneven   Univ   University   µs   Microsecond(s)   µsec   Microsecond(s)     V   vard   Varied   vel   Velocity   vi   Violet   Vol Ash   Volcanic ash     W   wh   White   WHIS   Whistle     Y   yd   Yard   yds   Yards   yl   Yellow