| Acronym | Meaning |
| WWJD | What Would Jesus Do? (see WWWD) |
| HMMWV | High Mobility Multipurpose Wheeled Vehicle (hum-vee; Hummer) |
| WCBO | World Chess Boxing Organisation |
| TRACON | Terminal Radar Approach Control |
| PCIE | Peripheral Component Interconnect Express (computer Bus) |
| IET | Initial Entry Training |
| HBV | Hepatitis B Virus |
| MIDI | Musical Instrument Digital Interface |
| TU | Technische Universit?t (German For Technical University) - Thammasat University (Thailand) -Turkey (FIPS 10-4 Country Code) |
| NAIRU | Non Accelerating Inflation Rate Of Unemployment |