| Acronym | Meaning |
 | HEOSS | High Earth Orbit Space Surveillance |
| TCAS | Traffic Collision Avoidance System |
| QK | Air Canada Jazz (IATA Airline Designator) |
| USNH | United States Naval Hospital |
| BN | Brunei (ISO 3166 Digram; FIPS 10-4 Country Code) |
| CTSS | Compatible Time-Sharing System |
| ERV | Endogenous RetroVirus |
| FMCAFAM | Federal Magistrates' Court Of Australia: Family (used For Citing Family Law Decisions Of The FMC) |
| KPV | Krupnokaliberniy Pulemet Vladimorova (Russian ???? ???????????????? ??????? ??????????? |
| CH | Chieftain Tank -China (FIPS 10-4 Country Code) - Switzerland (ISO 3166 Digram; From Latin Confoederatio Helvetica) |
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