| Abbreviation | Definition |
|---|---|
| WITS | Washington Interagency Telecommunications System |
| WL | Warning Letter |
| WMS | Website Management Staff |
| WMS(OC) | Website Management Staff (OC) |
| WNME | West Nile MeningoEncephalitis |
| WNV | West Nile Virus |
| WO | White Oak Campus |
| WO(NCTR) | Washington Office (NCTR) |
| WOCII | Woodmont Office Complex II (South) |
| WONF | with other natural flavors |
| WPADP | ISBT (International Society of Blood Transfusion) Working Party on Automation and Data Processing |
| WPADP | ISBT Working Party on Automation and Data Processing |
| WPADP | Working Party on Automation and Data Processing |
| WPC | WordPerfect Character (mapping file) |
| WPS(OC) | Workforce Programs Staff (OC) |
| WSHSC | water soluble, heat stable chemicals |
| WSL | Washington Seafood Laboratory |
| WSL(CFSAN) | Washington Seafood Laboratory (CFSAN) |
| WtW | Welfare-to-Work |
| WYSIWYG | What You See Is What You Get |