flare
noun
a shape that spreads outward
“the skirt had a wide flare”
Synonymsflaira sudden burst of flame
a burst of light used to communicate or illuminate
Synonymsflashreddening of the skin spreading outward from a focus of infection or irritation
a sudden recurrence or worsening of symptoms
“a colitis flare”
“infection can cause a lupus flare”
a sudden eruption of intense high-energy radiation from the sun's surface; associated with sunspots and radio interference
Synonymssolar flaream unwanted reflection in an optical system (or the fogging of an image that is caused by such a reflection)
a sudden outburst of emotion
“she felt a flare of delight”
“she could not control her flare of rage”
a device that produces a bright light for warning or illumination or identification
a short forward pass to a back who is running toward the sidelines
“he threw a flare to the fullback who was tackled for a loss”
Synonymsflare pass(baseball) a fly ball hit a short distance into the outfield
verb
burn brightly
“Every star seemed to flare with new intensity”
become flared and widen, usually at one end
“The bellbottom pants flare out”
Synonymsflare outshine with a sudden light
“The night sky flared with the massive bombardment”
Synonymsflameerupt or intensify suddenly
“Unrest erupted in the country”
“Tempers flared at the meeting”
Source: WordNet 3.1, Princeton University