Flare up
/ˈfler əp/B2
UpperIntermediate
1. To suddenly become worse or more intense; typically used in the context of emotions, conflict, or medical conditions.
- Her asthma tends to flare up during the pollen season.
- Tensions between the two countries flared up following the meeting.
- His temper flared up when he heard the news.
2. To suddenly catch fire or increase in brightness.
- The campfire flared up when more wood was added.
- The match flared up brightly in the darkness.
- The fireworks flared up in a dazzling display.
Synonyms:
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