| Acronym | Meaning |
| BOFH | Bastard Operator From Hell |
| MEF | U.S. Marine Expeditionary Force - Minimum Essential Facility - Mission Essential Force |
| SM | Samarium |
| PPA | Parahippocampal Place Area - PolyPhthalAmide |
| SN | Senegal (ISO 3166 Digram) - Singapore (FIPS 10-4 Country Code) - Snow (METAR Code) - SuperNova-Screen Name |
| PR | Praseodymium |
| NB | Norwegian Bokm?l Language (ISO 639-1 Code) |
| IFPI | International Federation Of Phonographic Industries |
| RADB | Rad51/Dmc1 Homologous Protein |
| PID | Pelvic Inflammatory Disease -Plan Identification Number - Positive Identification - Procedural Identification -Procurement Identification Description |