| Acronym | Meaning |
| IT | InferoTemporal (neurophysiology) - Information Technology -Italy (FIPS 10-4 Country Code; ISO 3166 Digram) |
| TANP | Terrain-Aware Network Planner |
| WVA | World Veterinary Association |
| UNICRI | United Nations Interregional Crime And Justice Research Institute |
| IIT | Illinois Institute Of Technology - Indian Institutes Of Technology - Indiana Institute Of Technology |
| IRM | Illinois Railway Museum - Inzhenernaya Razvedyvatelnaya Mashina (Russian ?????????? ???????????????? ?????? |
| PM | Picometre |
| FAM | Foreign Affairs Manual |
| RUSI | Royal United Services Institute For Defence Studies |
| CAAT | OrCampaign Against Arms Trade - The Johns Hopkins Center For Alternatives To Animal Testing |