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flare

 
 
/fleər/ verb [I] (also flare up)

Definition

START If something bad such as anger or pain flares or flares up, it suddenly starts or gets worse: Violence flared up between football fans yesterday.
BURN to suddenly burn brightly, usually for a short time: The rocket flared in the sky and disappeared into space.
(Definition of flare verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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