| Acronym | Meaning |
| SM | Samarium |
| TAADCOORD | Theatre Army Air Defence Co-ordinator |
| PY | Paraguay (ISO 3166 Digram) - Person-Year -Portsmouth Yardstick |
| NA | Nauruan Language (ISO 639-1 Code) |
| SMS | Many |
| OPCW | Organization For The Prohibition Of Chemical Weapons |
| MSLP | Mean Sea Level Pressure |
| EDS | Electronic Data Systems - Electronic Differential System |
| BB | Barbados (ISO 3166 Digram; FIPS 10-4 Country Code) -Boys' Brigade (Christian Youth Organisation) - Brigitte Bardot (actress) |
| EI | Ireland (FIPS 10-4 Country Code; From ire) |