| Acronym | Meaning |
 | BRA | Brazil (ISO 3166 Trigram) |
| GRN | Guaran Language (ISO 639-2 Code) |
| AET. | Aetatis (Latin |
| CR | Coral Sea Islands (FIPS 10-4 Territory Code) - Costa Rica (ISO 3166 Digram) |
| GLBA | Gramm-Leach-Bliley Act |
| EC | Ecuador (ISO 3166 Digram; FIPS 10-4 Country Code) -Electronic Combat - European Community (see EEC) -Exacoulomb |
| MPAA | Motion Picture Association Of America |
| SVO | Subject |
| ER | Emergency Room -Eritrea (ISO 3166 Digram; FIPS 10-4 Country Code) |
| GMT | Giant Magellan Telescope - Greenwich Mean Time |
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