Omission is a nouna word that names a person, place, thing, or idea for something that was left out, or the act of leaving something out. It can also mean failingnot doing something that should have been done to do something that should have been done, or a mistakean error made by accident caused by not noticing or including something.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /oʊˈmɪʃən/
Easy pronunciation: oh-MISH-ən (approximate spelling).
Stress: Stress is on the second syllable: MISH.
Noun meaning the act of leaving something out or failing to include it.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
Omission Meaning
leaving something out
Part of speech: noun
Definition: the act of leaving something out, or failing to include it
Example: The report contains an important omission about the budget.
Synonyms for this meaning:
- deletion — Works when something is deliberately or clearly left out.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
Other Meanings of Omission
Meaning 2
a mistake because something was forgotten or overlooked
Part of speech: noun
Definition: a mistake resulting from neglect
Example: The missing signature was an omission.
Synonyms for this meaning:
- skip — This is only a loose fit and is not a standard formal synonym for the noun in this sense.
Meaning 3
the thing that was left out
Part of speech: noun
Definition: something that has been omitted
Example: She searched the table for omissions.
Meaning 4
leaving sounds or words out when speaking
Part of speech: noun
Definition: any process whereby sounds or words are left out of spoken words or phrases
Example: The pronunciation showed an omission of the final sound.
Synonyms for this meaning:
- deletion — Possible in a technical language context, but not a close everyday substitute.
Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
Omission Synonyms
Similar Meaning
- deletion
a mistake caused by neglect or overlooking something
- skip
leaving out sounds or words in speech
- deletion
Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
Common Mistakes
- People sometimes use omission to mean the actual missing thing, but it more often refers to the act of leaving something out or the failure to include it.
- Skip is not a strong everyday synonym for omission; it can sound informal or too general.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What does omission mean?
Omission means leaving something out, failing to include something, or the thing that was left out.
What is a simple synonym for omission?
Deletion is the strongest synonym in the sense of leaving something out.
Is omission the same as missing?
Not exactly. Omission is usually about something being left out or not done, while missing simply means absent.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.
