| Acronym | Meaning |
| ACCAC | Awdurdod Cymwysterau |
| SP | Special - Spring Tide (nautical Charts) |
| CHIP | California Highway Patrol |
| ROV | Remotely Operated Vehicle |
| ICRAF | International Centre For Research In Agroforestry (a.k.a. World Agroforestry Centre Since 2002) |
| PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| SB | Solomon Islands (ISO 3166 Digram) |
| IV | C?te D'Ivoire (FIPS 10-4 Country Code; From Ivory Coast) - Four (in Roman Numerals) -IntraVenous (as In Intravenous Drip Or Intravenous Therapy) |
| VLAD | Vertical Line Array DIFAR |
| BU | Bulgaria (FIPS 10-4 Country Code) - Burma (ISO 3166 Digram; Obsolete Since 1989) |