| Acronym | Meaning |
| UID | User ID |
| RUN | Kirundi Language (ISO 639-2 Code) |
| NTZ | Iraq-Saudi Arabia Neutral Zone (ISO 3166 Trigram; Obsolete 1993) |
| SRD | Science Requirements Document -Surinam Dollar (ISO 4217 Currency Code) |
| SS | Swati Language (ISO 639-1 Code) |
| SONAR | SOund Navigation And Ranging |
| CGM | Computer Graphics Metafile |
| GAD | Generalized Anxiety Disorder |
| DCE | Data Communication Equipment |
| DPMO | (U.S.) Defense Prisoner Of War/Missing Personnel Office |