| Acronym | Meaning |
| CIS | Canadian Interuniversity Sport - Commonwealth Of Independent States - Command And Information System - Communication And Information System |
| FBIS | Foreign Broadcast Information Service |
| S&TCD | CERDEC Space And Terrestrial Communications Directorate |
| MLE | Maximum Likelihood Estimation |
| SNCF | Soci?t? Nationale Des Chemins De Fer Fran?ais (French For French Railways National Society) |
| CPON | Certified Pediatric Oncology Nurse |
| LBN | Lebanon (ISO 3166 Trigram) |
| HBO | Home Box Office |
| SV | El Salvador (ISO 3166 Digram) -Sportverein (German For Sport Association |
| NI | Nickel |