| Acronym | Meaning |
| CAEN | Close Action Engagement (constructive Simulation) |
| LLB | Legum Baccalaureus (Latin: Bachelor Of Laws) |
| VACIS | Vehicle And Container Inspection System |
| SIP | Session Initiation Protocol - State Implementation Plan - System Improvement Program - Systematic Investment Plan |
| RHIC | Relativistic Heavy Ion Collider |
| OFA | Occipital Face Area |
| SQ | Sound Quality |
| SSR | Radar Picket Submarine (retired US Navy Hull Classification) -Solid State Recorder |
| CJTF | Combined Joint Task Force |
| WS | Samoa (ISO 3166 And FIPS 10-4 Country Code Digram; From West Samoa) -Writer To The Signet (a Scottish Solicitor) |