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ENGLISH · A WORD WITH POSSIBILITIES

omission.

The act of omitting.

8 characters3 syllables approx.English language

Meaning & usage

noun/ə(ʊ)ˈmɪʃ.ən/Received-Pronunciation/oʊˈmɪʃ.ən/Canada, General-American
  1. The act of omitting.

    uncountable
  2. The act of neglecting to perform an action one has an obligation to do.

    uncountable
    E&O insurance (for errors and omissions) covers both errors of commission and errors of omission.
  3. An instance of those acts, or the thing left out thereby; something deleted or left out.

    countable
    The suspicious omissions in the new edition of the book attracted claims of censorship.
  4. Something not done or neglected.

    countable · uncountable
    The lack of a sponge count was an omission by the surgical team.
  5. The shortening of a word or phrase, using an apostrophe ( ' ) to replace the missing letters, often used to approximate the sound of speech or a specific dialect.

    countable · uncountable
Where this word comes from

From Middle English omissioun, from Old French omission, from Late Latin omissio, omissionem, from Latin omitto.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.