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 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

Nick Schroeder, an analyst with the Legislative Analyst’s Office, earlier this month said the only indication of unfunded raises was the omission itself. — Corey Schmidt, Sacbee.com, 29 Aug. 2026

Courts generally assume omission of a family member was accidental, unless there is proof to the contrary. — Bob Carlson, Forbes.com, 28 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