What is the meaning of flaring?

verb

• Burn brightly.
  • usage: "Every star seemed to flare with new intensity"
  • synonyms: flare, flame up, blaze up, burn up
• Become flared and widen, usually at one end.
  • usage: "The bellbottom pants flare out"
  • synonyms: flare out, flare
• Shine with a sudden light.
  • usage: "The night sky flared with the massive bombardment"
  • synonyms: flare, flame
• Erupt or intensify suddenly.
  • usage: "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
  • synonyms: erupt, irrupt, flare up, flare, break open, burst out

adjective

• Streaming or flapping or spreading wide as if in a current of air.
  • usage: "ran quickly, her flaring coat behind her"; "flags aflare in the breeze"
  • synonyms: aflare