| Acronym | Meaning |
| EI | Ireland (FIPS 10-4 Country Code; From ire) |
| ETH | Ethiopia (ISO 3166 Trigram) |
| CP | Canadian Pacific - Check Point - Command Post |
| ACAS | Aboriginal Children's Advancement Society - Advisory |
| SPC | Secretariat Of The Pacific Community |
| SOI | Signal Operating Instruction |
| OCR | Optical Character Recognition |
| CVT | Continuously Variable Transmission |
| AVTB | Armoured Vehicle Test Bed -Aviation Test Bed |
| MMOR | Master Of Management In Operations Research |