| Acronym | Meaning |
| OW | Old Wykehamist |
| COSER | COoperative SERvice |
| DRL | Daytime Running Lights - Dorman Roberts Ltd. |
| MUS | Mauritius (ISO 3166 Trigram) |
| DXA | Dual-energy X-ray Absorptiometry |
| CF | Canadian Forces -Central African Republic (ISO 3166 Digram) - Republic Of The Congo (FIPS 10-4 Country Code) |
| ESV | Engineer Support Vehicle |
| HCSC | Higher Command And Staff Course |
| COO | Chief Operating Officer |
| HQ | HeadQuarters -Howland Island (FIPS 10-4 Territory Code) |