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flare up

verb
  1. To burn brightly again. (intransitive) · The fire flared up after we added more wood to it.
  2. To become more intense suddenly. (intransitive) · Reports indicate that tensions have flared up in the Middle East again.· The pain in my shoulder flares up when I turn my head.
  3. To burst out suddenly, as in anger. (intransitive) · The insult made him flare up.
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Words, meanings, pronunciations and translations from Wiktionary (CC BY-SA 4.0); how common each word is from wordfreq. Made into this dictionary by FluentPlex.