| Acronym | Meaning |
| PTSD | Post-Traumatic Stress Disorder |
| BMU | Bermuda (ISO 3166 Trigram) |
| BCC | Blind Carbon Copy |
| BRN | Brunei (ISO 3166 Trigram) |
| CFFZ | Call For Fire Zone |
| JDCC | UK Joint Doctrine And Concepts Centre |
| AAA | Administration |
| MWOA | Mount Wilson Observatory Association |
| NIAID | National Institute Of Allergies And Infectious Disease |
| CPV | Cape Verde (ISO 3166 Trigram) |