omission

noun

omis·​sion ō-ˈmi-shən 

ə-

1

a

: 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.

Synonyms of omission

• deletion

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

The omission contrasts with the European Union's AI Act, which requires providers of high-risk AI systems to report serious incidents to national authorities. — Beatrice Nolan, Fortune, 10 Sep. 2026

And although the Maroon reissue featured OG-style Nike Air branding, it wasn’t featured on the Sport Blue release just one year prior — an omission Nike will reportedly seek to correct on the forthcoming 2027 drop. — Riley Jones, Footwear News, 5 Sep. 2026

The midfielder, 20, is a notable omission from the list of names submitted by the club before the 11pm BST deadline on Thursday night, after scoring on his full Premier League debut in Sunday’s 4-3 defeat at Chelsea. — Andy Naylor, New York Times, 4 Sep. 2026

Deadline’s questions to the festival about the jury conference had come about following the conference’s clear omission from the festival schedule, which was highly unusual. — Andreas Wiseman, Deadline, 30 Aug. 2026

Word History

Etymology

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

First Known Use

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

Rhymes for omission

• addition
• admission
• ambition
• attrition
• audition
• clinician
• cognition
• coition
• commission
• condition
• contrition
• dentition

Kids Definition

omission

noun

omis·​sion ō-ˈmish-ən 

ə-

1

: something omitted

2

: the act of omitting : the state of being omitted

Legal Definition

omission

noun

omis·​sion ō-ˈmi-shən 

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