omis·sion | \ō-ˈmi-shən, ə-\

Definition of omission 

1a : something neglected or left undone There are a few omissions in the list.

b : apathy toward or neglect of duty The police officer was reprimanded for the omission of his duty to inform the suspect of his rights.

2 : the act of omitting : the state of being omitted Her omission from the team was surprising.

Keep scrolling for more

Synonyms for omission


deletion, elision

Visit the Thesaurus for More 

Examples of omission in a Sentence

There are a few omissions in the list. the disk contains a selection of deleted scenes, and a couple of the omissions greatly add to the intelligibility of the movie's plot

Recent Examples on the Web

To my eye, there were no obvious blips or omissions. Dewayne Bevil,, "First look: 'Universal Orlando's Cinematic Celebration'," 10 July 2018 Its crimes are often errors of omission, virtually without authorship. Justin Davidson, Daily Intelligencer, "A Year Has Passed Since the Grenfell Tower Fire. It Could Happen Again Anytime.," 14 June 2018 Arguably as painful are the omissions of fact — those stubborn denials of the undeniable that echo through the generations. F. Kathleen Foley,, "Armenian genocide fuels Rogue Machine's '100 Aprils'," 22 June 2018 But the problem lies in Langlands’s omission of the marketplace. Josephine Livingstone, The New Republic, "Does Crafting Make People Happier?," 9 Apr. 2018 The idea here is that the indictment's omission of allegations against Trump or any Americans means there was no collusion. Danny Cevallos, NBC News, "The charges Mueller could have brought against the Russians but didn’t," 17 Feb. 2018 The purported omission of material information, it is said, has the effect of making the memo misleading. Andrew C. Mccarthy, National Review, "Positioning over the Nunes FISA Memo Continues Ahead of Its Release," 1 Feb. 2018 Seattle slugger Nelson Cruz is a very difficult omission. Mike Fitzpatrick,, "MLB All-Star Game predictions: Who will start on July 17?," 6 July 2018 Athletic director Warde Manuel said the omission from the budget proposal isn’t an indication that there won’t be another TV series. Orion Sang, Detroit Free Press, "Michigan football may not be must-see TV on Amazon again this season," 22 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'omission.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of omission

14th century, in the meaning defined at sense 1a

History and Etymology for omission

Middle English omissioun, from Anglo-French omission, from Late Latin omission-, omissio, from Latin omittere

Keep scrolling for more

Learn More about omission

Dictionary Entries near omission








Statistics for omission

Last Updated

16 Oct 2018

Look-up Popularity

Time Traveler for omission

The first known use of omission was in the 14th century

See more words from the same century

Keep scrolling for more

More Definitions for omission



English Language Learners Definition of omission

: something that has not been included or done : something that has been omitted

: the act of not including or doing something

: the state of being not included in something


omis·sion | \ō-ˈmi-shən \

Kids Definition of omission

1 : something left out There are some omissions in the list.

2 : the act of leaving out : the state of being left out I'm sorry for the omission of your name on the list.


omis·sion | \ō-ˈmi-shən \

Legal Definition of omission 

1 : something neglected, left out, or left undone

2 : the act, fact, or state of leaving something out or failing to do something especially that is required by duty, procedure, or law liable for a criminal act or omission

Keep scrolling for more

Comments on omission

What made you want to look up omission? Please tell us where you read or heard it (including the quote, if possible).


lying above or upon

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

Test your knowledge - and maybe learn something along the way.


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!