What does IOW stand for?

Inert Ordnance Warehouse

Infected Open Wound (MELL)

In Other Words

Input-Output Write - Computer science (MHDI)

Inspector of Works - Indian Railway (TIR)

Iowa City, IA - Location identifier - FAA (FAAL)

Iowa-Oto - Language code (ETLW)

Isle Of Wight

Wartburg College, Waverly, IA - OCLC symbol (OCLC)

Iowa Reports - A publication (DLA)