| Acronym | Meaning |
| IB | International Baccalaureate |
| CTU | Counter Terrorist Unit (fictional Branch Of The Central Intelligence Agency In The Television Action Series 24) |
| CCOP | Coalition Common Operating/Operational Picture |
| CSRC | Conflict Studies Research Centre |
| CCSCS | Consultative Committee For Space Data Systems |
| MISSI | Multilevel Information System Security Initiative |
| SOP | Standing/Standard Operating Procedure |
| MOTESS | Moving Object And Transient Event Search System |
| SCM | Surface Contamination Module |
| YN | Yottanewton |