Dictionary.com
Thesaurus.com
Synonyms

omission

American  
[oh-mish-uhn] / oʊˈmɪʃ ən /

noun

  1. the act of omitting.

  2. the state of being omitted.

  3. something left out, not done, or neglected.

    an important omission in a report.


omission British  
/ əʊˈmɪʃən /

noun

  1. something that has been omitted or neglected

  2. the act of omitting or the state of having been omitted

"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

Other Word Forms

  • nonomission noun
  • omissive adjective
  • omissiveness noun
  • preomission noun

Etymology

Origin of omission

1350–1400; Middle English < Late Latin omissiōn- (stem of omissiō ), equivalent to omiss ( us ) (past participle of omittere to let go; omit ) + -iōn- -ion; mission

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.

At a time when many doctors pride themselves on practicing precision medicine, that omission is striking and dangerous.

From Slate • Mar. 22, 2026

When Democratic Senator Mark Warner asked Gabbard about the omission, she said she had to trim her public remarks because they were "running long".

From BBC • Mar. 18, 2026

Whatever the case, neither finding was shared with the whistleblower or their counsel for a staggering eight months, an omission that created a second problem.

From Salon • Mar. 5, 2026

This is a bizarre omission, even more so for its lack of explanation.

From The Wall Street Journal • Feb. 6, 2026

It felt like a stupid thing to say, like it shouldn’t have mattered what sport he played in his free time, but it had also begun to feel like a blatant omission on his end.

From "A Very Large Expanse of Sea" by Tahereh Mafi