| Abbreviation | Definition |
|---|---|
| FSIV | Fast Supply Intervention Vessels |
| FSS | Fast Sealift Ship |
| FV | Fishing Vessel |
| G | Galleon |
| GAL | Galleon |
| GB | GunBoat |
| GOD | Gallery Of Death |
| HMS | Her/His Majesty's Ship |
| HMS | His/Her Majesty's Ship |
| HPFWW | High Pressure Fresh Water Washing |
| HQS | HeadQuarters Ship |
| HSB | High Speed Boat |
| HSS | High Speed Ship |
| HSV | High Speed Vessel |
| HTV | Heavy Transport Vessel |
| IBS | Inflatable Boat, Small |
| IBS | Itty Bitty Ship (SEAL team) |
| ICST | International Classification of Ships by Type |
| ILOHC | In Lieu Of Hold Cleaning |
| INHS | Indian Naval Hospital Ship |