What does Yo stand for?

Yoma (BJA)

Younge's English Exchequer Equity Reports - 159 English Reprint - A publication (DLA)

Aeronautical Information Service Unit - ICAO designator (ICDA)

Former Yugoslavia - NATO country code

Fuel Oil Barge - Self-propelled - Navy symbol

Heli-Air-Monaco - ICAO designator (AD)

Mayotte - ANSI two-letter standard code (CNC)

Mayotte - NCIC country-territory code (NCIC)

Tears old (SAUS)

Yard Oiler - Navy symbol (DICI)

Yarn Over - Knitting

Y-Axis of Orbiter - NASA (NASA)

Yearly Output (SAUS)

Year-Old

Years Old - Telegraphy (PCTE)

Yerkes Observatory (SAUS)

Yerzley Oscillograph (UWER)

Yes - Citizens band radio slang

Yokohama - Tire casing code

Young Offender (WDAA)

Young Officer - British military (DMA)

Your Order (SAUS)

Yttrium Monoxide (UWER)