| Acronym | Meaning |
| DCD | [Organ] Donation After Cardiac Death |
| BDOS | Basic Disk Operating System; Part Of CP/M |
| BY | Burundi (FIPS 10-4 Country Code) - Belarus (ISO 3166 Digram) |
| ZBT | Zero-Balance Transfer (accounting) |
| GYY | Gary/Chicago International Airport (IATA Airport Code) |
| MMCM | Machinist's Mate |
| TACC | Tactical Air Control Centre - (USAF) Tanker Airlift Control Center |
| FIBUA | Fighting In Built-Up Areas |
| CASTOR | Canadian Automatic Small Telescopes For Orbital Research |
| HUN | Hungary (ISO 3166 Trigram) |