| Acronym | Meaning |
| AFAIK | As Far As I Know |
| DREA | Defence Research Establishment Atlantic (obsolete 2002) |
| EASA | European Aviation Safety Agency |
| JCDS | Joint Chiefs Of The Defence Staff |
| CAC | California Association Of Criminalists - Chronic Asymptomatic [Disease] Carrier |
| R2I | Resistance To Interrogation |
| ERN | Eritrean Nakfa (ISO 4217 Currency Code) |
| LI | Lithium |
| SZ | Swaziland (ISO 3166 Digram) - Switzerland (FIPS 10-4 Country Code) |
| MPSI | Member Of The Pharmaceutical Society Of Ireland |