flare up

US /fler ʌp/
UK /fler ʌp/
"flare up" picture
1.

incendiar-se, chamejar

to suddenly start burning more brightly or intensely

:
The campfire suddenly flared up, sending sparks into the night sky.
A fogueira de repente incendiou-se, enviando faíscas para o céu noturno.
The dry brush flared up quickly in the strong winds.
A vegetação seca incendiou-se rapidamente com os ventos fortes.
2.

piorar, reacender

to suddenly become worse or more intense (especially of a disease or problem)

:
Her asthma tends to flare up during allergy season.
A asma dela tende a piorar durante a estação das alergias.
Old tensions between the two countries could flare up again.
Antigas tensões entre os dois países poderiam reacender.