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  • oh
    oh
    interjection
    (used as an expression of surprise, pain, disapproval, etc.).
  • Oh
    Oh
    noun
    Sadaharu born 1940, Chinese baseball player and manager in Japan.
  • OH
    OH
    abbreviation
    Ohio (approved especially for use with zip code).
Synonyms

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?


noun

oh's, plural ohs plural
  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.


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.


oh 1 British  
/ əʊ /

interjection

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

    oh, I suppose so

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
OH 2 British  

abbreviation

  1. Ohio

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of oh

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And that’s what they want because, oh, that is the gold standard for clinical trials.

From The Wall Street Journal • May 7, 2026

He could be heard saying "oh my god" when the cue ball did not run through as expected.

From BBC • Apr. 27, 2026

But as ugly as greed can be, it can be oh so beautiful.

From Salon • Apr. 25, 2026

"Oh, my martyred child," he wailed, "oh my darling."

From BBC • Apr. 16, 2026

Hugo is the kind of boy you would probably not like me to spend my time with, but – oh, Mama – he’s so handsome!

From "Code Name Kingfisher" by Liz Kessler

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