Noun flare up has 1 sense
  1. outburst, burst, flare-up - a sudden violent happening; "an outburst of heavy rain"; "a burst of lightning"
    --1 is a kind of happening, occurrence, natural event
    --1 has particulars: salvo; rush
    Derived form: verb flare up2
,Verb flare up has 2 senses
  1. flare up - ignite quickly and suddenly, especially after having died down; "the fire flared up and died down once again"
    --1 is one way to
    ignite, light
    Sample sentence:
    Something ----s
  2. erupt, irrupt, flare up, flare, break open, burst out - erupt or intensify suddenly; "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
    --2 is one way to intensify, deepen
    Derived form: noun flare-up1
    Sample sentences:
    Something ----s
    Somebody ----s
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