| Acronym | Meaning |
| FSI | Fuel Stratified Injection |
| PCI | U.S. Pacific Islands Trust Territory (ISO 3166 Trigram; Obsolete 1986) -Peripheral Component Interconnect (computer Bus) |
| BMW | Bayerische Motoren Werke (German |
| MB | Manitoba (postal Symbol) - Martinique (FIPS 10-4 Territory Code) |
| NSS | (U.S.) Naval Simulation System |
| LEO | Low Earth Orbit |
| NER | Niger (ISO 3166 Trigram) |
| UUA | Unitarian Universalist Association |
| MEX | Mexico (ISO 3166 Trigram) |
| KZ | Kazakhstan (FIPS 10-4 Country Code; ISO 3166 Digram) |