What does HO stand for?

What does HO mean?

HO	Host Open Computing » Networking
HO	Holland Oh Miscellaneous » Unclassified
HO	Hood Open Governmental » Transportation
HO	Holiday Offers Miscellaneous » Unclassified
HO	Hot Outfit Miscellaneous » Unclassified
HO	How Ordinary Miscellaneous » Unclassified
HO	The Ho Of Miscellaneous » Unclassified
HO	Handling Options Miscellaneous » Unclassified
HO	Horizontal Opening Business » Products
HO	Harmonic Order Miscellaneous » Unclassified
HO	Handling Option Miscellaneous » Unclassified
HO	Higher Option Miscellaneous » Unclassified
HO	Houston Field Office Governmental » FBI Files
HO	Hellaciously Ornery Miscellaneous » Funnies
HO	Herman Oliver Miscellaneous » Unclassified
HO	Herb Obrien Miscellaneous » Unclassified
HO	Handeling Option Miscellaneous » Unclassified
HO	Hollow Omen Miscellaneous » Unclassified
HO	Helper Outers Miscellaneous » Unclassified
HO	Handing Option Miscellaneous » Unclassified
HO	Honourary Officer Miscellaneous » Unclassified
HO	Higher Order Academic & Science » Mathematics
HO	Hang Over Miscellaneous » Unclassified
HO	Hydrogen-Oxygen Governmental » NASA
HO	Hearing Officer Medical » British Medicine