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• un
  un

  pronoun

  one.
• UN
  UN

  abbreviation

  United Nations.
• un-
  un-

  a prefix meaning “not,” freely used as an English formative, giving negative or opposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able ), and less freely used in certain other nouns (unrest; unemployment ).
• 'un
  'un

  pronoun

  a spelling of one

un

¹ American  

[uhn] / ən /

Or 'un

pronoun

Dialect.

1. one.

   young uns; He's a bad un.

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UN ² American  

Or U.N.

abbreviation

1. United Nations.

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un- ³ American  

1. a prefix meaning “not,” freely used as an English formative, giving negative or opposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able ), and less freely used in certain other nouns (unrest; unemployment ).

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un- ⁴ American  

1. a prefix freely used in English to form verbs expressing a reversal of some action or state, or removal, deprivation, release, etc. (unbend; uncork; unfasten , etc.), or to intensify the force of a verb already having such a meaning (unloose ).

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un- ¹ British  

prefix

1. denoting reversal of an action or state

   uncover

   untangle

2. denoting removal from, release, or deprivation

   unharness

   unman

   unthrone

3. (intensifier)

   unloose

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UN ² British  

abbreviation

1. United Nations

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'un ³ British  

/ ən /

pronoun

1. a spelling of one

   that's a big 'un

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un- ⁴ British  

prefix

1. (freely used with adjectives, participles, and their derivative adverbs and nouns: less frequently used with certain other nouns) not; contrary to; opposite of

   uncertain

   uncomplaining

   unemotionally

   untidiness

   unbelief

   unrest

   untruth

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Usage

This spelling is intended to reflect a dialectal or informal pronunciation

Synonym Usage

See in- ³.

Etymology

Origin of un-³

Middle English un-, on-, Old English; cognate with Dutch on-, Gothic, German un-, Old Norse ū-, ō-; akin to Latin in-, Greek an-, a-. See a- ⁶, an- ¹, in- ³

Origin of un-⁴

Middle English, Old English un-, on-; cognate with Gothic and-, Dutch ont-, German ent-; akin to Latin ante, Greek antí; cf. ante-, anti-

Example Sentences

Un- or underguarded sections of the river are extremely vulnerable.

From Slate • Jun. 18, 2019

The Un- bumt, they called her, and Mother of Dragons.

From "A Clash of Kings" by George R.R. Martin

When I visited Ledgers and Lists, I discovered he only taught one class: Un- likely Maths.

From "The Name of the Wind" by Patrick Rothfuss

Un-         til one is able to prevent bad results, he should avoid their         occasion.

From Science and Health, with Key to the Scriptures by Eddy, Mary Baker

The heir of heaven, the son of Un- Nefer, the child of the gods, he who was wholly fair, is bitten!

From Legends of the Gods The Egyptian Texts, edited with Translations by Budge, E. A. Wallis (Ernest Alfred Wallis), Sir