Definitions For Oh

noun

A midwestern state in north central United States in the Great Lakes region

Abbreviation

Ohio

Interjection

Used to express strong emotion, such as surprise, fear, anger, or pain: Oh—can't you stop making so much noise?

Noun

Zero.

Acronym

Occupational Health Services (various organizations)
Occupational Health and Safety
Office of Head Start (US DHHS)
Ohio Historical Society
Organ Historical Society
Oracle HTTP Server
Oregon Historical Society (Portland, OR)
Office of Homeland Security (USA)
Oral Health Section (various organizations)
Open Hypermedia Systems
Online Help System
Oklahoma Historical Society (Oklahoma City, OK)
Oswego High School
October Household Survey (South Africa)
Olympia High School (Washington)
Open Heart Surgery
Obesity-Hypoventilation Syndrome
Odessa High School (various locations)
Office of Highway Safety
Orange High School
Occupational Hygiene Services (various locations)
Osceola High School (Kissimmee, Florida)
Oconomowoc High School
Oceanside High School
Open Hypermedia System
Office of Health and Safety (US CDC)
Online High School (Stanford University)
Oakdale High School (Oakdale, CA)
Oakland High School (Oakland, CA)
Ontario Historical Society (Canada)
Ocular Histoplasmosis Syndrome
Okemos High School (Michigan)
Oxnard High School (Oxnard, CA)
Owatonna High School (Owatonna, MN)
Oakton High School (Vienna, VA)
Orem High School
Oviedo High School
Ottumwa High School
Open Hyperdocument System
Ossining High School (Ossining, NY, USA)
Ottawa Humane Society (Canada)
Okeechobee High School (Florida)
Oberlin High School (Oberlin, OH)
Oneida High School (Oneida, NY)
Ontario Health Survey
On Hand Stock (inventory)
Occipital Horn Syndrome
Ochsner Health System
Ozaukee Humane Society (est. 1977; Wisconsin Humane Society)
Orrville High School
Oceana High School
Orofino High School (Idaho)
Osbourn High School (Manassas, Virginia)
Omron Healthcare Singapore
Optimal Health Systems
Olympian High School (Chula Vista, CA)
Ohio Homeland Security (Columbus, OH)
Ontario Health Study (Canada)
Ottawa Horticultural Society
Ovonic Hydrogen Systems (Energy Conversion Devices; Auburn Hills, MI)
Ocoee High School (Florida)
Operator Head Space
Opelousas High School (Louisana)
Overhydrated Hereditary Stomatocytosis
Orestimba High School
Over Head Squat (weightlifting)
Order of the Holy Sepulchre (Equestrian Order of the Holy Sepulchre of Jerusalem, an order of knighthood of the Catholic church)
Order Handling System
Osseo High School (Osseo, Minnesota, USA)
Oakfield High School (Oakfield, WI)
Oilfields High School (California)
Oakley High School
Occupational Health Solutions Ltd (UK)
Office of Hispanic Services
Offerton High School (UK)
Omega High School (Michigan)
Ornamental Horticultural Society
Orchard Hills Basketball League (Milford, CT)
Open Here Stupid
Oblates of the Holy Spirit (Christianity)
One Hundredth Street (New York bus depot)