What does HOO stand for?

Avila College, Kansas City, MO - OCLC symbol (OCLC)

Glacier Water Services, Inc. - AMEX symbol (SAG)

Hanford Operations Office - Nuclear energy (MCD)

Hiroo - Japan - Seismograph station code, US Geological Survey (SEIS)

Holoholo - Language code (ETLW)

Hood River, OR - Amtrak Busline code

Hoosier Park - Horse racing entrants (HRTC)

Hot Water Boats, Saint George, UT - Manufacturer code for watercraft hull identification number (USCG)

House Officer Observer (SAUS)

Quang Duc - South Vietnam - Airport symbol (AD)

Hoosier Park, IN - North American horse racing tracks (HRTC)