| A | B |
| breaker | A wave that turnes into foam when it crests. |
| capsize | To overturn or cause to overturn. |
| cruise | To travel about or sail in an unhurried way. |
| drench | To wet through and through; soak. |
| fathom | A unit of length equal to six feet, used for measurements of the depth of water. |
| harpoon | A weapon like a spear with a barbed head used in hunting large fish and whales. |
| kelp | Any of various brown, often very large seaweeds. Some kelp have stems over 150 feet long. |
| marine | Of or relating to the sea. |
| vaval | Relating to a navy. |
| port | A place on a waterway with facilities for loading or unloading ships. |
| reservoir | A natural or artificial lake or pond used for storage of water. |
| schooner | A fore-and-aft rigged sailing vessel with two or more masts. |
| scuba | A portable device including one or more tanks of compressed air, used by divers to breathe underwater. |
| shallow | Measuring little from the bottom to the surface or top; not deep. |
| undertow | A current beneath the surface of a body of water running in a direction opposite to that of the current at the surface. |