| Acronym | Meaning |
| PDU | Police Dog Unit - Power Distribution Unit - Protocol Data Unit |
| VP | Vice-President (veep) |
| ACK | Acknowledge (telecommunications; Cf. NAK) |
| USSR | Union Of Soviet Socialist Republics |
| ALD | Accounting Line Designator (nuclear Weapon Targeting) |
| SOHO | Solar And Heliospheric Observatory |
| TB | Terbium |
| LI | Limburgish Language (ISO 639-1 Code) |
| VG | British Virgin Islands (ISO 3166 Digram) |
| BY | Burundi (FIPS 10-4 Country Code) - Belarus (ISO 3166 Digram) |