There are 4 definitions of OH in English:

OH1

Syllabification: OH

abbreviation

  • Ohio (in official postal use).

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Definition of OH in:

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Word of the day kerf
Pronunciation: kərf
noun
a slit made by cutting with a saw

There are 4 definitions of OH in English:

OH2

Syllabification: OH

noun

informal
  • A person’s wife, husband, or partner (used in electronic communication): I often go to gigs on my own as my OH doesn’t have the same musical tastes as me
    More example sentences
    • Her OH is such a career-driven bloke - he spends 50% of the year working abroad.
    • I know his OH won't want to get involved.
    • I would love my OH to do a healthy diet/exercise regime with me

Origin

1990s: abbreviation of other half.

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Definition of OH in:

There are 4 definitions of OH in English:

oh1

Syllabification: oh

exclamation

  • Used to express a range of emotions including surprise, anger, disappointment, or joy, or when reacting to something that has just been said: “Oh no,” said Daisy, appalled Me? Oh, I’m fine oh, shut up
    More example sentences
    • Oh no, there's only back seats left!

Phrases

oh boy

Used to express surprise or excitement.
More example sentences
  • Boy, oh boy, was I in for a surprise!
  • Oh boy, they've already gotten together.
  • Boy, oh boy, I can't wait until the whole story comes out.

oh well

Used to express resignation: oh well, please yourself
More example sentences
  • It recalls nutritionists' warnings about salads being just as caloric as double burgers, but oh well.
  • You have to prep really intelligently, be prepared for saying oh well, we're not doing this now.
  • I wish I'd kept reading up on dreams and sleep so I could have better answered him, but oh well.

oh yeah?

Used to express disbelief.
Used to express a threatening or taunting reaction.

Origin

mid 16th century: variant of O3.

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Definition of oh in:

There are 4 definitions of OH in English:

oh2

Syllabification: oh

noun

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Definition of oh in: