| Acronym | Meaning |
 | SCUDA | Self Contained Underwater Drinking Apparatus. Product That Can Be Used To Drink Underwater. |
| DM | Dive Master (PADI) |
| BC | Bouyancy Compensator |
| END | Equivalent Narcotic Depth |
| DPV | Diver Propulsion Vehicle |
| TO | Training Officer (BSAC) |
| DSMB | Delayed Surface Marker Buoy |
| IAND | International Association Of Nitrox Divers |
| AIE | Advanced Instructor Exam (BSAC) |
| GPS | Global Positioing System |
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