from The American Heritage® Dictionary of the English Language, 4th Edition
- abbr. Ohio
- abbr. open house
from Wiktionary, Creative Commons Attribution/Share-Alike License
- abbr. Ohio, a state of the United States of America.
- abbr. Symbol for a hydroxyl, or alcohol, functional group.
- abbr. Symbol for a hydroxide radical, or hydroxyl group.
- abbr. Prefix code for observation helicopter designations.
- abbr. Other Half, i.e. Husband, wife, partner etc.
Sorry, no etymologies found.