| Acronym | Meaning |
| CD | Candela |
| G | CSF -Granulocyte Colony-Stimulating Factor |
| DIFAR | DIrectional Frequency Analysis And Recording |
| CIA | Cairo International Airport - Central Intelligence Agency - Culinary Institute Of America |
| TTZ | Tetrazolium |
| ABCA | American Border Collie Association - American |
| NACISA | NATO Communications And Information Systems Agency |
| PK | Picokelvin |
| RA | Rain (METAR Code) -Rear Area - Reinforced Alert - Republican Army - Right Ascension - Royal Artillery (UK) - Royal Academy |
| BARDA | Biomedical Advanced Research & Development Agency |