| Acronym | Definition |
|---|
| I3➣Integrated Infrastructure Initiative |
| I3➣Information Interaction Intelligence |
| I3➣Internet 3 |
| I3➣Intelligent Integration of Information |
| I3➣Imperfect 3 (diamonds) |
| I3➣Integral 3 (Tenovis) |
| I3➣Integrated Imagery & Intelligence (Global Command and Control System) |
| I3➣Integrated Intelligence and Imagery |
| I3➣Interdependence, Interoperability and Integration (US DoD) |
| I3➣Installation Information Infrastructure |
| I3➣Innovate 3 (UK design consultancy) |