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flare up

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phrasal verb [intransitive]
Word Forms
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present tense
I/you/we/theyflare up
he/she/itflares up
present participleflaring up
past tenseflared up
past participleflared up

Related meanings

  1. 1
    same as flare2 (sense 1)

    The fire could flare up again at any time.

  2. 2
    same as flare2 (sense 3)

    It looked as if the fighting might flare up again.

  3. 3
    if an illness or medical condition flares up, it becomes worse

    In moments of stress, his asthma always flares up.

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