| Acronym | Meaning |
 | CGM | Computer Graphics Metafile |
| FYI | For Your Information |
| SSH | Saffir-Simpson Hurricane Scale |
| TANJ | There Ain't No Justice (used As Expletive In The Ringworld Novels) |
| ZN | Zeptonewton |
| NWFZ | Nuclear-Weapon-Free Zone |
| ATC | Air Traffic Control - Air Training Corps - U.S. Air Transport Command (1942-1948) |
| SJM | Svalbard And Jan Mayen (ISO 3166 Trigram) |
| VERITAS | Very Energetic Radiation Imaging Telescope Array System |
| BDS | #NAME? |
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