| Acronym | Meaning |
| OP CIT | Opere Citato (Latin |
| NIDRR | National Institute On Disability Research And Rehabilitation |
| SOHC | Single-OverHead-Cam Engine |
| A2ATD OR A?ATD | Anti |
| DARPA | U. S. Defense Advanced Research Projects Agency |
| IATA | International Air Transport Association |
| AML | Acute Myeloid Leukaemia |
| USD | (U.S.) Under-Secretary Of Defense -U.S. Dollar (ISO 4217 Currency Code) |
| NAM | Namibia (ISO 3166 Trigram) |
| JSS | Joint Support Ship |