| Acronym | Meaning |
 | MKT | Missouri-Kansas-Texas Railroad (1865-1989) - Mortal Kombat Trilogy |
| ES | Einsteinium - Exasecond |
| HIPPARCOS | HIgh Precision Parallax COllecting Satellite |
| TADIL | Tactical Digital Information Link |
| WRC | World Rally Championship |
| ATB | Active Time Battle -British Antarctic Territory (ISO 3166 Trigram; Merged With AQ In 1979) |
| UIG | Uyghur Language (ISO 639-2 Code) |
| ROCV OR ROC | V -Recognition Of Combat Vehicles (rock-vee) |
| F.K.A. OR F/K/A | Formerly Known As |
| LUX | Luxembourg (ISO 3166 Trigram) |
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