| Acronym | Meaning |
 | FFA | Forum Fisheries Agency -Free-Fire Area - Fusiform Face Area - Football Federation Australia - Future Farmers Of America (today The National FFA Organization) |
| FSI | Fuel Stratified Injection |
| HAWK | Homing All The Way Killer (air Defence System) |
| JSP | Joint Services Publication |
| APHIS | Animal And Plant Health Inspection Service |
| SIP | Session Initiation Protocol - State Implementation Plan - System Improvement Program - Systematic Investment Plan |
| TBGRI | Tropical Botanic Garden And Research Institute (India) |
| CMM | Capability Maturity Model |
| MU | Mauritius (ISO 3166 Digram) - Oman (FIPS 10-4 Country Code; From Muscat) |
| HKG | Hong Kong (ISO 3166 Trigram) |
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