A sudden brief burst of bright flame or light. The flare from the match illuminated the dark room for a moment.
A device producing a bright flame, used especially as a signal or marker. The sailors used a flare to signal for help when their boat was stranded.
A gradual widening, especially of a skirt or pants. The dress had a beautiful flare at the bottom, giving it an elegant look.
A sudden outburst of emotion, especially anger. There was a flare of anger in his eyes when he heard the news.
A sudden recurrence or worsening of symptoms or disease. She experienced a flare of her arthritis symptoms during the cold weather.
An unwanted streak, ghost, or ring of light produced by internal reflections or scattering in a camera lens or optical system. Shooting directly toward the sun produced a distracting flare in the photograph.