| Acronym | Meaning |
 | HP | High Pressure |
| AD | Adventure Diver (PADI) Advanced Diver (BSAC) |
| AA | Assisted Ascent |
| CAGE | Cerebral Arterial Gas Embolism |
| ABT | Actual Bottom Time |
| EO | Equipment Officer (BSAC) |
| CESA | Controlled Emergency Swimming Ascent |
| SCUDA | Self Contained Underwater Drinking Apparatus. Product That Can Be Used To Drink Underwater. |
| IDC | Instructor Development Course (PADI) |
| RDP | Recreational Dive Planner |
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