| Acronym | Meaning |
 | ITTO | International Tropical Timber Organization |
| RU | Russia (ISO 3166 Digram) |
| JI | Joint Implementation |
| DSM | Diagnostic And Statistical Manual Of Mental Disorders |
| ID | Idaho (postal Symbol) -Identity -Indonesia (FIPS 10-4 Country Code; ISO 3166 Digram) -Infantry Division - Intelligent Design |
| IFOV | Instantaneous Field Of View |
| LIN | Lingala Language (ISO 639-2 Code) |
| BLUI | Body Language User Interface (blooie) |
| MWR | Morale |
| CAT | Catalan Language (ISO 639-2 Code) |
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