| Acronym | Meaning |
| RUN | Kirundi Language (ISO 639-2 Code) |
| VFR | Visual Flight Rules |
| ZA | Zeptoampere |
| TZC | Tetrazolium Chloride |
| EEZ | Economic Exclusion Zone Or Exclusive Economic Zone |
| HR | Croatian Language (ISO 639-1 Code) |
| STRATCOM | United States Strategic Command |
| TTFN | Ta Ta For Now |
| SSR | Radar Picket Submarine (retired US Navy Hull Classification) -Solid State Recorder |
| SEDRIS | Synthetic Environment Data Representation And Interchange Specification |