| Acronym | Meaning |
| YA | Yottayear |
| MCSF | Marine Corps Security Forces |
| PARC | Palo Alto Research Center |
| ESM | Electronic Warfare Support Measures |
| MSO | Multiple System Operator |
| SZ | Swaziland (ISO 3166 Digram) - Switzerland (FIPS 10-4 Country Code) |
| TAJT | Tom And Jerry Tales |
| DFAD | Digital Feature Analysis Data (dee-fad) |
| NCAR | U.S. National Center For Atmospheric Research |
| EN | Corps Of Engineers -Estonia (FIPS 10-4 Country Code) - Exanewton |