| Acronym | Meaning |
 | OWIC | Open Water Instructor Course (BSAC) |
| AMDT | Adjusted Maximum Dive Time |
| RIB | Rigid-Hulled Inflatable Boat |
| RD | Rescue Diver (PADI) |
| ROV | Remotly Operated Vehicle |
| BFK | Big F*cking Knife (reference To The Diver's Knife) |
| SAR | Search And Rescue/Recovery |
| DIR | Doing It Right |
| AIE | Advanced Instructor Exam (BSAC) |
| CESA | Controlled Emergency Swimming Ascent |
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