| Acronym | Meaning |
 | SEG | Society Of Exploration Geophysicists |
| ACRI | African Crisis Initiative |
| ZN | Zeptonewton |
| FIAT | Fabbrica Italiana Automobili Torino (Italian Italian Car Factory Of Turin) |
| JM | Jamaica (FIPS 10-4 Country Code; ISO 3166 Digram) |
| I.E. | Id Est (Latin |
| GMFSC | Ground Mobile Forces Satellite Communications |
| MCI | Microwave Communications |
| IRC | International Red Cross - International Reply Coupon - Internet Relay Chat |
| KC | Kilocoulomb |
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