| Acronym | Meaning |
| WU | Wabash University - Washington University In St. Louis - Western Union - Windows Update - Work Unit - WU Wien (German Wirtschaftsuniversit?t Wien |
| PLM | Polarized Light Microscope/Microscopy |
| GOP | Grand Old Party |
| WIPO | World Intellectual Property Organization |
| CZE | Czech Republic (ISO 3166 Trigram) |
| WVR | Women's Volunteer Reserve (WWII UK) |
| ER | Emergency Room -Eritrea (ISO 3166 Digram; FIPS 10-4 Country Code) |
| CCII | Command And Control Information Infrastructure |
| ALB | Albania (ISO 3166 Trigram) |
| FA | Field Artillery - Financial Aid - Football Association (England) |