Aback
Abaft
Abeam/A beam reach
Able bodied seaman
Abysmal
Aft
Ahead
Aloft
Ambergris
Anadromus
Anchor
Angle of declination
Antarctic Convergence
Apparent wind
Aspect ratio
Astern
Astrolabe
Athwart
Avast
Azoic zone
Back-staff
Backstay
Ballast
Barnacle
Barometer
Barque/Bark
Barquentine
Barrier island
Bathythermograph
Battens
Beam
Beam reach
Bear off
Bearing
Beat/Beating/Close hauled
Beaufort Scale
Before the mast
Belay
Below
Bend
Bermuda rig (Marconi)
Berth
Bight
Bilge
Binnacle
Blade
Block
Blue Riband
Boat
Boatswain Mate
Boom
Bow
Bowsprit
Brace
Brail
break-bulk loading
Brig
Brigantine
Broad reach
Bulkhead
Bulwark
Buoy
Cabotage
Camber
Capstan
Captain
Caulk
Chart
Chock-a-Block
Cleat
Clew
Clientage/Debt Clientage
Close Reach
Close-hauled
Come About
Come up
Compass
Containerization
Continental Drift
Continental shelf
Continental slope
Coriolis Effect/Force
Crew
Current
Dead reckoning
Deck
Diurnal tide
Dog Watch
Doldrums
Drift
Drugg
ebbing current
Ebbing Tide
Ekman layer
Ekman Spiral/Transport
Equator
Estuary
Fall off
Ferrel cell
Fetch
First Mate
Fixed/Standing rigging
Floaters Week
Flooding Tide
Foot
Fore 'n aft rigged
Forestay
Forward
Freeboard
Freshening
Full-And-By
Furl/Furling
Gaff
Gaff rig/Gaff sail
Galley
Gam
Gangway
Genoa sail
Geostrophic
Geostrophic current
GPS
Grapnel
Gudgeon
Gulf Stream
Gunwale
Guyot
gyre
Hadley cell
Halyard
Hanks
Harpoon
Hatch
Hawse Hole
Head (of a sail)
Heeling
Hold
Holystone
Horizon
Horse latitudes
Hull
Hurricane
Hydrophiles
In irons
Intermodalism
Jib
Jib Boom
Jib sheet
Jibe [�Jibe ho�]/Gybe
Kayak
Kedge
Keel
Keel-Haul
Keelson
Ketch
Keystone species
Knees
Knot
Labrador Current
Ladder
Lateen sail/rig
Latitude
Lee gauge
Leech
Leeward side
Line
Loggerhead
Longitude
Loop Current
Loran
Luff
Luminism
Magnetic North
Magnetic variation
Main sheet
Mainmast
Mainsail/Main course
Mare Nostrum
Maritime History
Marlingspike
Mast
Mean Low Water (MLW)
Mercator projection
Meridian
Mixed Tide
Monsoon
Mooring
Navigable Waters
Navigation
Neap Tide
Oar
Ocean
Oceanography
Oceanus
Ordinary seaman
Out-Haul
Overhead
Painter
Pangaea
PCBs
Peak
Perigee
Pilot
Piloting
Pintle
Piston Corer
Plate Tectonics
Plimsoll Mark
Point of sail
Pointing up
Points of Sail
Polar cell
Polaris/Pole Star
Poop
Port
Portolan/Portolani
Precison Depth Recorder (PDR)
Prevailing Wind
Prime meridian
Punt
Quarter-Deck
Race
Radar
Rake
Ratline
Reef
Rhumb Line
Rigging
Ring
Rip-Rap/rip rap
Roadstead
Rode
Royal
Rudder
Running
Running rigging
Rutter
rutter (routier)
Sail
Salinity
Scale
Schooner
Scupper
Scuppers
Seam
Secchi disk
Second/Third Mates
Semidiurnal tide
Set
Sextant
Shackle
Shank
Sheet
Ship
shipkeeper
Ship's bells
Shrouds
Slack tide
Sloop
Sonar
Sounding
Spinnaker
Spreaders
Spring Tide
sprit rig
Sprit sail
Square Sail
Square-rigged
Starboard
Stay sail
Stem/Stem Post
stempost/stem
Step
Stern
Stern Post
Sternpost
Stevedores
Strake
Tack, To (v.)
Tacking
Tackle
Taffrail
Thalassology
Thalloscracy
The tack
Thermohaline circulation
Tidal current
Tidal Shoreline
Tidal Strait
Tide
Tiller
Topgallant
Topsail
Topsail Schooner
Touch and Take
Transom
Tropic of Cancer
Tropic of Capricorn
True North
True wind
Tsunami
Volta
Waif
Waif-pole
Warp, to
Watch
Watch Bill
Water
Wear, To
Weather gauge
Weather side
Weigh, To
Wetland, Estuarine
Wetland, Intertidal Riverine
Wetland, Marine
wetlands
Winch
Wind
Windlass
Windward
Wing and Wing
yard
Yard-arm
Yard/Yardarm
Yawl