Word
omission
Phoneticsomis·sion
US/oʊˈmɪʃən/
UK/əʊmˈɪʃən/
Definitions
01leaving something out
B2 · Upper Intermediate Countable noun
n. the act of not including something, or the thing that is missing.
n. the act of excluding or failing to include something; also, the specific item or detail that has been left out.
“The editor noticed the omission of a key name from the guest list.”
“The report was criticized for its glaring omission of the environmental impact data, which many felt was a deliberate attempt to mislead the public.”
Usage
Often used with the preposition 'of' to indicate what is missing.
02failure to do a duty
C1 · Advanced Countable noun Law Formal · Technical
n. a failure to do something that you were supposed to do.
n. the neglect or failure to perform an action that one is legally or morally obligated to do.
“The company was sued for its omission in providing safety equipment.”
“Legal experts argued whether the accident was caused by a direct action or a negligent omission by the site supervisor.”
Usage
Commonly paired with 'commission' in the phrase 'sins of commission and omission'.
Antonyms
03shortening a word
C2 · Proficiency Countable noun Technical · Academic
n. leaving out a letter or sound in a word, often shown by an apostrophe.
n. the deletion of a letter or sound from a word or phrase, typically represented by an apostrophe in writing.
“In the word 'don't', the apostrophe shows the omission of the letter 'o'.”
“The poet used the omission of final consonants to mimic the specific regional dialect of the characters.”
Usage
Used primarily in linguistics and grammar contexts.
Synonyms
Real-World Examples
“Levante goalkeeper Ryan, 34, has enjoyed a strong start to the La Liga season and is a fascinating omission.” “De Zerbi described Richarlison’s omission as a “consequence” of the Brazilian’s actions over the past month and a half.” Etymology
From Middle English omissioun, from Old French omission, from Late Latin omissio, omissionem, from Latin omitto.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
VERB
NOUN
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Frequent
- Level
- B2 · Upper Intermediate
- Updated
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