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English definition of “flare”

flare

noun (BRIGHTNESS)    /fleər/ US  /fler/
[C] a sudden increase in the brightness of a fire: There was a sudden flare when she threw the petrol onto the fire.Fire and flameFire service [C] a very bright light or coloured smoke that can be used as a signal, or a device that produces this: We set off a flare to help guide our rescuers.Specific signs and symbolsSigns, signals and symbols
(Definition of flare noun (BRIGHTNESS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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