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Synonyms

omission

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

noun

  • omissions
    plural
  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

Derived Forms

Inflected Forms

Nouns

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; see omit) + -iōn- -ion; see mission

Explanation

If you make an omission, you leave something out. If you are a restaurant reviewer and you give a glowing review to a new restaurant but fail to mention that you own half of it, that's a significant omission. The noun omission comes from the verb, omit, which means to leave out. Omissions can be purposeful or a result of neglect. Was the omission of Aunt Suzy from your wedding invitation something you meant to do, or an accident? If you're cleaning the house but don't take out the garbage, you'll regret your omission when the garbage is stinking up the kitchen.

Keep Reading on Vocabulary.com

Vocabulary lists containing omission

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.

See Examples For:

The expansive cast list for “Avengers: Doomsday” includes members of the Avengers past and present, the Fantastic Four, the X-Men and many others, but one glaring omission has been Tom Holland as Spider-Man.

From Los Angeles Times Jul. 31, 2026

While much of the blame for this omission can be squarely placed on Infantino as the longtime leader of the association, the soccer clubs themselves must also be held accountable.

From Salon Jul. 18, 2026

It seemed possible those photos were a matter of off hours or poor angles or selective omission.

From Slate Jul. 1, 2026

It would deflate the exercise without a vote, an act of omission rather than a fight.

From The Wall Street Journal Jun. 15, 2026

No report about Young had come from the Communist party, but since Young seemed a conscientious worker, I did not think the omission serious in any case.

From "Black Boy" by Richard Wright

But it turned out to be a weak case, one that falls apart under the weight of its own contradictions, omissions, and leaps of illogic.

From Slate Aug. 7, 2026

Lastly, some omissions are very simple to explain .

From Salon Jul. 9, 2026

But it’s the roster, and not the way in which it was released, that is of most importance here and among the striking omissions are midfielders Tanner Tessmann and Diego Luna.

From Los Angeles Times May 23, 2026

However not only is it all “nothing but words if its recommendations aren’t implemented,” as your editorial notes, but two glaring omissions in the report deserve attention.

From The Wall Street Journal Apr. 27, 2026

Such omissions of devotion, of affection, she knows now, do not matter in the end.

From "The Namesake" by Jhumpa Lahiri

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