| Acronym | Meaning |
| FDA | Food And Drug Administration (U.S.) |
| MHZ | Megahertz |
| IC | Ice Crystals (METAR Code) - Iceland (FIPS 10-4 Country Code) -Integrated Circuit |
| XH | Xhosa Language (ISO 639-1 Code) |
| MWK | Malawi Kwacha (ISO 4217 Currency Code) |
| EDECSIM | Extended Directed Energy Combat Simulation |
| PLL | Phase-Locked Loop (electronics) |
| CGF | Computer-Generated Forces (Simulation) |
| EWSD | Elektronisches W?hlsystem Digital (German |
| EST | Estonian Language (ISO 639-2 Code) |