flare up meaning and definition

FLARE UP verb

Definition of flare up (verb)

1. ignite quickly and suddenly, especially after having died down
   • "the fire flared up and died down once again"
2. erupt or intensify suddenly
   • "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
   • synonyms: break open, burst out, erupt, flare, irrupt