Health Insuring Organization
Highly Inclined Orbit
Halt I/O
Health Insuring Organizations
HALT INPUT/OUTPUT
Health Insurance Organization
High Inclination Orbit
High Income Opportunity Fund, Inc.
HIGH INCOME OPPORTUNITY INCOME FUND, I…
High Input/Output
High Interest Object
High-Impact Outage
Hogskolen i Oslo
Hole In One
Humanities International Office
hybrid input-output
IATA code for Portland-Hillsboro Airpo…