What does wo stand for?

wahlobligatorisch (SAUS)

Weeks Old - Medicine (MEDA)

Wollastonite - CIPW classification - Geology

Wait Order

Walkover

Walter Owen Bentley - Automotive engineer - British

Warning Order

War Office - British

War Orientation - Navy

Warrant Officer - Usually in combination with numbers to denote serviceman's grade - Military

Washington Office (FAAC)

Wash Out - Medicine

Wash-Out (SAUS)

Waste Operations (SAUS)

Waste Oxide (SAUS)

Water Officer (WDAA)

Water Outlet Gasket - Automotive engineering

Weber-Osler - Syndrome - Medicine (DB)

Weeks Old - Preceded by a number - Neonatology (DAVI)

Welding Operator (SAUS)

Welfare Officer - British military (DMA)

Welsh Office (DCTA)

Western Operation

Wheel Over Bearing (SAUS)

White Oval - on Jupiter

Who - Telegraphy (PCTE)

Wide Open (DAVI)

Winch Operator (SAUS)

Wind Offset

Wipe Out (MSA)

Wireless Operator

Wireless Order (SAUS)

Without (AFM)

Wobbler (SAUS)

Women

Women Outdoors (EA)

Women's Reserve, Ordnance Duties - USNR officer designation

Woodbine, Ont., Canada - North American horse racing tracks (HRTC)

Woodfree Off-Machine Paper (DGA)

Word Processing (ALAC)

Working Overseer (ADA)

Work Order

World Airways - ICAO designator (AD)

Worms - German license plate city code

Write Once - Computer science (CDE)

Write Only

Write Out

Writer Officer - British military (DMA)

Written Off (WDAA)