- Oh is defined as something said to show surprise, to attract attention, or to show you understand.
- When a ghost surprises you in a haunted house, that's an example of when you say oh.
- Calling a waiter to your table to bring you the check is an example of oh; "Oh, waiter."
- When a student understands the math lesson they've been taught, they might say oh.
oh definition by Webster's New World
- used to express surprise, wonder, fear, pain, etc.
- used in direct address, as to attract attention: oh, waiter!
- used to signify comprehension or acknowledgment of another's statement, explanation, etc.
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
oh definition by American Heritage Dictionary
- Used to express strong emotion, such as surprise, fear, anger, or pain.
- Used in direct address: Oh, sir! You forgot your keys.
- Used to indicate understanding or acknowledgment of a statement.
Origin: From the number zero's resemblance to the letter O.
abbreviationThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- open house
oh - Computer Definition
The chemical symbol for hydroxyl. See also hydroxyl.