| Acronym | Meaning |
| PK | Pakistan (ISO 3166 And FIPS 10-4 Country Code Digram) - Petakelvin -Player Kill[er] - Probability Of Kill -PolyKetone -Pulemet Kalashnikova (Russian ?? ??????? ??????????? |
| YD | People's Democratic Republic Of Yemen (ISO 3166 Digram |
| WIMP | Weakly Interacting Massive Particle - Windows |
| A | Ampere |
| POSH | Port Outbound Starboard Home (alleged) |
| TMM | Turkmen Manat (ISO 4217 Currency Code) |
| PBD | PolyButaDiene |
| RISD | Rhode Island School Of Design (riz-dee) |
| SSC | Safe |
| MD | Mendelevium |