| Acronym | Meaning |
| CBC | Canadian Broadcasting Corporation - Christmas Bird Count - Cipher-Block Chaining - Cornering Brake Control |
| PCP | Phencyclidine - Pneumocystis Jiroveci Pneumonia (formerly Peumocystis Carinii) -Probabilistically Checkable Proof |
| TRP | Target Reference Point -Time Of Reporting |
| ECB | European Central Bank - England (and Wales) Cricket Board |
| BBL | Be Back Later - Bird Banding Laboratory - British Basketball League |
| SAFER | Steel And Foam Energy Reduction |
| PKMS | Pulemet Kalashnikova Modernizirovanniy Stepanova (Russian ???? ??????? ??????????? ????????????????? ????????? |
| CPG | Clinical Practice Guideline |
| RADB | Real America Database - Resource Assessment Database - Reunion Address DataBase - Rice Allelopathy Data Base - Routing Arbiter Data Base |
| PUS | United States Miscellaneous Pacific Islands (ISO 3166 Trigram; Obsolete 1986) |