| W/O | the Work Of .... 
| Others |
| W/O | Week Of ....
| Others |
| W/O | Wife Of
| Others |
| W/O | Wife Of ....
| Others |
| W/O | Without
| Others |
| W/O | Written Off
| Others |
| WO | Walk Over
| Others |
| WO | WalkOver
| Others |
| WO | Wall Oven
| Others |
| WO | Walraven original
| Others |
| WO | Walter Owns
| Others |
| WO | Wankers Outfit
| Others |
| WO | War Objects
| Others |
| WO | War Office
| Others |
| WO | Warhammer Online
| Others |
| WO | Warrant Officer
| Others |
| WO | Warrant Officer - Army, Navy, USCG, USMC
| Others |
| WO | Wash Out
| Others |
| WO | Washington Office
| Others |
| WO | Watch Out
| Others |
| WO | Water Outlet
| Others |
| WO | Weak One
| Others |
| WO | Weak Oxidizer
| Others |
| WO | Weapons Officer
| Others |
| WO | Web Object
| Others |
| WO | week of
| Others |
| WO | Weekly Oricon
| Others |
| WO | Weeks Old
| Others |
| WO | Welding Operator
| Others |
| WO | Welsh office
| Others |
| WO | West Orange, New Jersey
| Others |
| WO | West Orlando
| Others |
| WO | West Ottawa
| Others |
| WO | Western Ohio
| Others |
| WO | Western Ontario
| Others |
| WO | Wetenschappelijk Onderwijs
| Others |
| WO | Wheeled On
| Others |
| WO | White Oak Campus
| Others |
| WO | White Oil
| Others |
| WO | White Out
| Others |
| WO | Whole OpenCascade
| Others |
| WO | Whos Online
| Others |
| WO | Wiccan Order
| Others |
| WO | Wicked One
| Others |
| WO | Wide Open
| Others |
| WO | Wide Out
| Others |
| WO | Widows and Orphans
| Others |
| WO | Widows Original
| Others |
| WO | William Oliver
| Others |
| WO | William Orson
| Others |
| WO | Window Original
| Others |
| WO | Wine Of Origin
| Others |
| WO | Wing Operation
| Others |
| WO | Wing Operations
| Others |
| WO | Winning Others
| Others |
| WO | Wiser Oreo
| Others |
| WO | With Offer
| Others |
| WO | With Other
| Others |
| WO | With Overview
| Others |
| WO | Woe On
| Others |
| WO | Wolof
| Others |
| WO | Women Operated
| Others |
| WO | Wonderful One
| Others |
| WO | Wood
| Others |
| WO | Word Order
| Others |
| WO | Work Order
| Others |
| WO | Working Opportunity
| Others |
| WO | World Office
| Others |
| WO | World Order
| Others |
| WO | World Organization
| Others |
| WO | World Orphans
| Others |
| WO | Wound Ostomy
| Others |
| WO | Write Off
| Others |
| WO | Write On
| Others |
| WO | Write Once
| Others |
| WO | Write Out
| Others |
| WO | Written Order
| Others |
| WO | Wrong Opportunity
| Others |