Phrasal verb
boil over
Definition
phrasal verb. to reach a point where a situation or an emotion like anger becomes too strong to control. It can also mean liquid spilling out of a pot because it is too hot.
phrasal verb. to reach a state of intensity where a situation or emotion can no longer be contained, leading to an outburst. The verb is intransitive and often follows a period of 'simmering' tension.
Examples
“The argument finally boiled over into a loud shouting match.”
“Years of hidden resentment among the staff boiled over when the new office rules were announced.”
“The long-standing diplomatic dispute boiled over into open conflict after the peace talks failed to reach a meaningful compromise.”
Examples
simple
“The argument finally boiled over into a loud shouting match.”
contextual
“Years of hidden resentment among the staff boiled over when the new office rules were announced.”
complex
“The long-standing diplomatic dispute boiled over into open conflict after the peace talks failed to reach a meaningful compromise.”
Usage
This phrase is almost always used for negative situations like anger, violence, or social unrest.
Teaching tip
Explain the metaphor of a cooking pot to help students visualize how 'simmering' (quiet anger) leads to 'boiling over' (an outburst).
Pitfall
The tension boiled over the meeting.
The tension boiled over during the meeting.
The verb is intransitive and cannot take a direct object; it requires a preposition to link to a noun.
Phrasal verb
Particles
over
Separability
inseparable
Pattern
boil + over
Synonyms
Antonyms
Grammar
- 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
- Level
- B2 · Upper Intermediate
- Updated
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