oh

¹ American  

[oh] / oʊ /

interjection

1. (used as an expression of surprise, pain, disapproval, etc.).

   Oh, just look at how pretty it is now that you've finished painting!

   Oh, no! I misplaced my keys again.

2. (used in direct address to attract the attention of the person spoken to).

   Oh, John, will you take these books?

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noun

plural

oh's, ohs

1. the exclamation “oh.”.

   She gave a little oh of surprise when she discovered her shoes had disappeared.

verb (used without object)

1. to utter or exclaim “oh.”.

   The hammer dented the wood trim and he ohed in dismay.

Oh ² American  

[oh] / oʊ /

noun

1. Sadaharu born 1940, Chinese baseball player and manager in Japan.

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OH ³ American  

abbreviation

1. Ohio (approved especially for use with zip code).

2. (used in digital communications) other half.

3. (used in digital communications) overheard.

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oh ¹ British  

/ əʊ /

interjection

1. an exclamation expressive of surprise, pain, pleasure, etc

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1. an expression used to preface a remark, gain time, etc

   oh, I suppose so

OH ² British  

abbreviation

1. Ohio

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Etymology

Origin of oh

First recorded in 1530–40; later spelling of O ² ( def. )

Example Sentences

“But if he’s taking out the GM of a plant or controller and they’ve gone off and ordered Champagne for everybody, then you go, oh look, that’s a conversation.”

From The Wall Street Journal • Mar. 30, 2026

While shooting it was fun to make these discoveries where you’re like, oh, this exists in me.

From Los Angeles Times • Mar. 10, 2026

"And oh by the way, those voters got sons and daughters in the war."

From BBC • Mar. 9, 2026

It triggers the same thought in other people like, oh yeah they buried my mom in a dress she wouldn’t have liked!

From Los Angeles Times • Feb. 25, 2026

“She was wearing an awful old shovel bonnet herself. It was rusty with age, and so was she. And, oh my, her veils were torn.”

From "Secrets at Sea" by Richard Peck