Synonyms of flare up

Noun

1. outburst, burst, flare-up, happening, occurrence, occurrent, natural event

usage: a sudden intense happening; "an outburst of heavy rain"; "a burst of lightning"

Verb

1. flare up, ignite, light

usage: ignite quickly and suddenly, especially after having died down; "the fire flared up and died down once again"

2. erupt, irrupt, flare up, flare, break open, burst out, intensify, deepen

usage: erupt or intensify suddenly; "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"