The meaning of the Acronym HOS is...

HOS is

• Hoosier Southern Railroad

More Meanings For HOS:

• Hawaiian Orchid Society
• House Of Spades
• Handel Ondersteunend Systeem
• Head Of School
• High Order Software
• Head Of State
• Humilitas Occidit Superbiam
• Human Operating System
• Huge Old Shroom
• Harvest Options Study
• Harvester Of Sorrow
• Human Oriented System
• House Of Shadows
• Hands On Stick
• Hall Of Shame

HOS is also in:

• Botany
• Firms
• Funnies
• General
• Latin
• NASA
• Physiology
• Positions
• Unfiled
• US Government