Workstation Operating System
Washington Ornithological Society
Wholesale Operator Service
Wife over shoulder
Workstation Operation System
Waiver of Service
Warp OS
Warrant Officers
Wartime Operational State
Web Object Service
Web of Science
Web Offset Section
Web Ordering System
Wilson Ornithological Society
Window Operations Survey
Wireless & Observers School
Wireless Office Service
Wireless Office Solution
Wireless Office Systems
Wireless operators School
WOLSELEY PLC
work order system
Work Orders
Works Order Special
World Health Organization oralyte solution
Way of Shambhala
West of Scotland
West Orange Stark
Wind of the Spirit
Women of Science
Workforce Opportunity Services
Working Operating System
World Of Sex
World of Sports
World Office Systems