| Acronym | Meaning |
| RAC | Royal Automobile Club (in The United Kingdom |
| ES | El Salvador (FIPS 10-4 Country Code) -Electronic Warfare Support -Exasiemens - Spain (ISO 3166 Digram; From Espa?a)) |
| UCBSA | United Cricket Board Of South Africa |
| FZRA | Freezing Rain (METAR Code) |
| PTAN | Precision Terrain Aided Navigation |
| DPDT | Double-Pole Double-Throw |
| ET | Ethiopia (ISO 3166 Digram; FIPS 10-4 Country Code) - Exatesla -Extra Terrestrial |
| YW | Yoctowatt |
| PCN | Pitcairn Islands (ISO 3166 Trigram) |
| CENTCOM | United States Central Command |