| No. | Item | Definition |
|---|---|---|
| 1. | abeam | at right angles sideways |
| 2. | adrift | floating without control |
| 3. | afloat | floating on water |
| 4. | aground | stuck on the bottom |
| 5. | amidships | in the middle section |
| 6. | anchor | device that holds position |
| 7. | ashore | on land |
| 8. | astern | behind the boat |
| 9. | beam | widest width of boat |
| 10. | berth | sleeping space or dock spot |
| 11. | bilge | lowest inside hull area |
| 12. | bimini | canvas sunshade over cockpit |
| 13. | boom | horizontal spar on mast |
| 14. | bow | front of a boat |
| 15. | bulkhead | interior dividing wall |
| 16. | buoy | floating navigation marker |
| 17. | cabin | enclosed living space |
| 18. | capsize | turn over in water |
| 19. | channel | safe navigable water route |
| 20. | chart | map for navigation |
| 21. | cleat | fitting for securing lines |
| 22. | cockpit | open control seating area |
| 23. | compass | instrument showing direction |
| 24. | current | flowing movement of water |
| 25. | deck | floor surface on top |
| 26. | depth sounder | instrument measuring water depth |
| 27. | dinghy | small auxiliary boat |
| 28. | dock | platform for tying up |
| 29. | draft | depth below waterline |
| 30. | ebb | outgoing tidal movement |
| 31. | fender | bumper protecting the hull |
| 32. | flare | distress signaling device |
| 33. | flood | incoming tidal movement |
| 34. | fog | thick low cloud |
| 35. | foredeck | front deck area |
| 36. | forward | toward the bow |
| 37. | freeboard | height above the water |
| 38. | fuel tank | container for fuel |
| 39. | galley | kitchen area on board |
| 40. | GPS | satellite navigation system |
| 41. | gunwale | upper edge of the side |
| 42. | halyard | line for raising sails |
| 43. | hatch | opening with a cover |
| 44. | head | toilet on a boat |
| 45. | heel | leaning sideways under force |
| 46. | helm | steering position or wheel |
| 47. | horn | sound signaling device |
| 48. | hull | main body of the boat |
| 49. | inboard | internal boat engine |
| 50. | jib | small forward sail |
| 51. | jibe | turn stern through wind |
| 52. | keel | bottom backbone for stability |
| 53. | knot | nautical mile per hour |
| 54. | ladder | steps for boarding |
| 55. | leeward | downwind side |
| 56. | life jacket | wearable flotation device |
| 57. | lifeline | safety cable along deck |
| 58. | line | rope used on boats |
| 59. | list | persistent lean to one side |
| 60. | mast | vertical spar supporting sails |
| 61. | Mayday | international distress radio call |
| 62. | mooring | secured berth or lines |
| 63. | nautical mile | distance used at sea |
| 64. | oar | lever used for rowing |
| 65. | outboard | external motor at stern |
| 66. | overboard | into or over the water |
| 67. | paddle | hand tool for propelling |
| 68. | port | left side facing forward |
| 69. | propeller | rotating blades for thrust |
| 70. | pump | device moving liquids |
| 71. | radar | radio detection system |
| 72. | rail | protective edge barrier |
| 73. | rode | anchor line or chain |
| 74. | rudder | steering blade underwater |
| 75. | sail | cloth catching the wind |
| 76. | shackle | metal connector for gear |
| 77. | shroud | wire supporting the mast |
| 78. | slip | assigned docking space |
| 79. | spring line | dock line limiting movement |
| 80. | stanchion | upright support post |
| 81. | starboard | right side facing forward |
| 82. | stern | rear of a boat |
| 83. | swim platform | rear platform near water |
| 84. | tack | turn bow through wind |
| 85. | throttle | control for engine speed |
| 86. | through-hull | fitting passing through hull |
| 87. | tide | regular rise and fall |
| 88. | tiller | lever for steering rudder |
| 89. | towline | line used for towing |
| 90. | transom | flat stern surface |
| 91. | trim | boat’s fore-and-aft balance |
| 92. | underway | moving, not anchored |
| 93. | VHF | marine radio communication band |
| 94. | visibility | distance you can see |
| 95. | wake | waves left behind |
| 96. | waterline | where hull meets water |
| 97. | waypoint | saved navigation position |
| 98. | winch | drum for hauling line |
| 99. | windlass | machine for raising anchor |
| 100. | windward | upwind side |