Английский словарь американских идиом - flare up

{v.} 1. To burn brightly for a short time especially after having died down. * /The fire flared up again and then died./ 2. To become suddenly angry. * /The mayor flared up at the reporter's remark./ * /The mother flared up at her children./ 3. To begin again suddenly, especially for a short time after a quiet time. * /Mr. Gray's arthritis flared up sometimes./ * /Even after they had conquered the country, revolts sometimes flared up./