| Acronym | Meaning |
| QUASAR | Quasi-stellar Radio Source |
| IFV | Infantry Fighting Vehicle |
| HSC | High School Certificate (as Used In New South Wales) |
| CBR | Case-Based Reasoning |
| DCD | [Organ] Donation After Cardiac Death |
| YS | Yottasecond |
| PEEK | PolyEtherEtherKetone |
| AQ | American Samoa (FIPS 10-4 Territory Code) - Antarctica (ISO 3166 Digram) |
| DV | Dhivehi Language (ISO 639-1 Code) |
| PID | Pelvic Inflammatory Disease -Plan Identification Number - Positive Identification - Procedural Identification -Procurement Identification Description |