| Acronym | Meaning |
| G10 | Group Of 10 (G7 + Belgium |
| PK | Pakistan (ISO 3166 And FIPS 10-4 Country Code Digram) - Petakelvin -Player Kill[er] - Probability Of Kill -PolyKetone -Pulemet Kalashnikova (Russian ?? ??????? ??????????? |
| OSE | Own Separate Entrance |
| KO | Knocked Out |
| HUD | Head-Up Display - Housing And Urban Development |
| RFA | Restrictive Fire Area (military) - Royal Field Artillery |
| FET | Field-Effect Transistor |
| PCC | NATO Partnership Coordination Cell - Posterior Cingulate Cortex - Pre-Command Course - Presidents Conference Committee |
| WST | Water Soluble Tetrazolium (assay) -Samoan Tala (ISO 4217 Currency Code) |
| PU | Guinea-Bissau (FIPS 10-4 Country Code) -Polyurethane -United States Miscellaneous Pacific Islands (ISO 3166 Digram; Obsolete 1986) |