flare

erupt or intensify suddenly

“Tempers flared at the meeting”

am unwanted reflection in an optical system (or the fogging of an image that is caused by such a reflection)

a sudden burst of flame

a sudden outburst of emotion

“she felt a flare of delight”

a sudden recurrence or worsening of symptoms

“a colitis flare”

a fly ball hit a short distance into the outfield

reddening of the skin spreading outward from a focus of infection or irritation

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”

burn brightly

“Every star seemed to flare with new intensity”

a burst of light used to communicate or illuminate

shine with a sudden light

“The night sky flared with the massive bombardment”

become flared and widen, usually at one end

“The bellbottom pants flare out”