Meaning & use

omission

noun·Academic

Last updated

UK/əʊˈmɪʃn/
US/oʊˈmɪʃn/

Meanings

  1. nouncountable

    Something that has been left out or not included, whether on purpose or by mistake.

    Grammar: Count it when naming the missing item: a glaring omission.

    Patterns

    • an omission from something
    • the omission of something

    The omission of her name from the list upset her.

    There is one serious omission in the report: the cost.

    Please tell us about any errors or omissions.

  2. noununcountable

    The act of leaving something out or the state of not being included.

    Grammar: Often followed by of: the omission of the final chapter.

    Patterns

    • omission of something

    Omission of key facts can mislead readers.

    The editor approved the omission of the last paragraph.

    Deliberate omission is a common way to hide the truth.

  3. nouncountable or uncountablelegal

    A failure to do something you were required to do, which may carry legal responsibility.

    Grammar: Often contrasted with commission: acts and omissions.

    Patterns

    • an act of omission
    • guilty of omission

    The nurse's omission to check the chart led to an inquiry.

    The judge distinguished between acts and omissions.

    Liability can arise from omission as well as action.

Word forms

pluralomissions

Common combinations

a glaring omission
Leaving out the safety warnings was a glaring omission.
sin of omission
Not telling her the truth was a sin of omission.
errors and omissions
The software is sold with a note excusing errors and omissions.
by omission
The article lied by omission.
a notable omission
The film's biggest star was a notable omission from the awards list.

Synonyms and how they differ

exclusion
Exclusion suggests a deliberate choice to keep something or someone out, while omission can be an accident.
oversight
Oversight always implies a mistake, while omission can also be intentional.
gap
Gap names the empty space left, not the act of leaving something out.
deletion
Deletion means removing something that was already there, while omission is never including it.

Opposites

Word family

omit verb
to leave out
omitted adjective
left out
omissible adjective
able to be left out (rare)

Commonly confused: omission or commission? omission or emission?

omission vs commission

Commission means doing or ordering something, or a fee paid on sales; in law it is the opposite of omission.

omission vs emission

Emission means a release of gas or light, while omission means leaving out.

Practice

A recipe forgets to list the sugar. What is this?

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