| Acronym | Meaning |
| SDS | Students For A Democratic Society |
| CALABARZON | A Region In The Philippines: CAvite |
| DMCA | Digital Millennium Copyright Act |
| CTSS | Compatible Time-Sharing System |
| VSHORAD | Very Short Range Air Defence |
| PLB | Personal Locator Beacon |
| MLWN | Mean Low Water Neaps (nautical Charts) |
| NAVS | Non-Cooperative Airborne Vector Scoring |
| LZ | Bulgaria (amateur Radio ITU Prefix) -Landing Zone |
| NGN | Nigerian Naira (ISO 4217 Currency Code) |