noun · 9 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
General-American:/ɪntɚˈvɛnʃən/
US:Recorded audio is listed in the source snapshot.
Received-Pronunciation:/ɪntəˈvɛnʃən/
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -ɛnʃən
CMU ARPABET:IH2 N T ER0 V EH1 N SH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The action of intervening; interfering in some course of events.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A legal motion through which a person or entity who has not been named as a party to a case seeks to have the court order that they be made a party.
Definition source: English Wiktionary via Wiktextract
Usage: US, countable, uncountable
Topics: law
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
An orchestrated attempt to convince somebody with an addiction or other psychological problem to seek professional help and/or change their behavior.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
An action taken or procedure performed; an operation.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
(law) a proceeding that permits a person to enter into a lawsuit already in progress; admission of person not an original party to the suit so that person can protect some right or interest that is allegedly affected by the proceedings
Definition source: Princeton WordNet 3.0
Examples
the purpose of intervention is to prevent unnecessary duplication of lawsuits