| Acronym | Meaning |
| I/ITSEC | Interservice/Industry Training |
| SBA | Simulation-Based Acquisition - Sovereign Base Area |
| SSBN | Nuclear-Powered Ballistic Missile Submarine (US Navy Hull Classification) |
| IST | Information System Technology - UCF Institute For Simulation And Training |
| DECT | Digital European Cordless Telephone |
| I2WD OR I?WD | U.S. Intelligence And Information Warfare Directorate (CERDEC) |
| ZT | Zeptotesla |
| QC | Quality Control -Qu?bec (postal Symbol) -Queen's Counsel |
| U | Uranium |
| FMCAFAM | Federal Magistrates' Court Of Australia: Family (used For Citing Family Law Decisions Of The FMC) |