| Acronym | Meaning |
 | CSA | Canadian Space Agency - Canadian Standards Association - Child Support Agency - Command Staff Advisor - Community-supported Agriculture - Confederate States Of America - Corps Storage Area -Czech Airlines |
| INDIGO | (U.S.) INtelligence DIvision Gaming Operation |
| MIDAS | Man-machine Integration Design And Analysis System |
| SCS | Scan Correlated Shift - Soil Conservation Service |
| DLSC | Diploma In Library Science |
| DBCS | Double-Byte Character Set |
| TSO | Tsonga Language (ISO 639-2 Code) |
| SN | Tin (Latin Stannum) |
| UNCF | United Negro College Fund |
| TAC | U.S. Tactical Air Command (1946-1992) |
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