| Acronym | Meaning |
| PKR | Pakistani Rupee (ISO 4217 Currency Code) |
| BYOF | Bring Your Own Flask |
| NCI | U.S. National Cancer Institute |
| CHE | Switzerland (ISO 3166 Trigram; From Latin Confoederatio Helvetica) |
| PCL | Passive Coherent Location |
| CIAO | Critical Infrastructure Assurance Office - Component-Integrated ACE ORB |
| IWARS | Infantry Warrior Simulation |
| MIMAROPA | Mindoro |
| F/U/B/O | For The Use And Benefit Of (found In Legal Documents) |
| SI | Slovenia (ISO 3166 And FIPS 10-4 Country Code Digram) -Socialist International - Sports Illustrated - Syst?me International (French |