English

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Proper noun

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OH

  1. (US) Abbreviation of Ohio.

Noun

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OH (plural OHs)

  1. (Internet slang) Initialism of other half: a husband, wife, partner, etc.
  2. (US, army, aviation) Initialism of observation helicopter.

Noun

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OH pl (plural only)

  1. Initialism of office hours.

Symbol

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OH

  1. (organic chemistry) A hydroxyl, or alcohol, functional group.
  2. (inorganic chemistry) A hydroxide radical, or hydroxyl group.

Anagrams

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