flare
noun
°A brightly burning light used to attract attention in an emergency, or to illuminate an area.
"The flares steered the traffic away from the accident."
°A widening of an object with an otherwise roughly constant width, e.g. on the lower legs of trousers and jeans.
"That's a genuine early '70's flare on those pants."
verb
°To blaze brightly.
"The blast furnace flared in the night."
°To burn unsteadily.