| Acronym | Meaning |
 | BC | Bouyancy Compensator |
| IDC | Instructor Development Course (PADI) |
| BCD | Buoyancy Control Device |
| RIB | Rigid-Hulled Inflatable Boat |
| ITW | Instructor Training Workshop (BSAC) |
| MDL | No Decompression Limit |
| BFK | Big F*cking Knife (reference To The Diver's Knife) |
| CESA | Controlled Emergency Swimming Ascent |
| DIR | Doing It Right |
| SPG | Submerssible Pressure Guage |
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