Scuba Diving
- A-clamp
- A-flag
- Alveoli
- Anoxia
- Assisted ascent
- Atmospheric pressure
- Bends
- Bezel
- Bottom time
- Breath hold dive
- Buddy
- Buoyancy compensator
- Buoyancy trim
- Buoyant ascent
- Compressed air
- Cracking
- Cylinder
- Dead air space
- Decompression illness
- Decompression stop
- Decompression tables
- Depth gauge
- Ditching
- Drift diving
- Dump valve
- Ear clearing
- Expired Air Resuscitation (EAR)
- First stage
- Free ascent
- Freeboard
- Gunwale
- Hard-hat divers
- Hydrostatic pressure
- Log book
- Negative buoyancy
- Neutral buoyancy
- Nitrox
- No-stop dive
- O-ring
- Octopus rig
- Positive buoyancy
- Purge valve
- Recompression chamber (RCC)
- SCUBA
- Scuba Diving
- Second stage
- Skin diving
- Staged decompression
- Surface marker buoy
- Tender
- Venting
- Weight belt
- Wet suit