Source : Webster's Revised Unabridged Dictionary (1913)

Flare \Flare\, v. i. [imp. & p. p. {Flared}; p. pr. & vb. n.
   {Flaring}.] [Cf. Norw. flara to blaze, flame, adorn with
   tinsel, dial. Sw. flasa upp, and E. flash, or flacker.]
   1. To burn with an unsteady or waving flame; as, the candle
      flares.

   2. To shine out with a sudden and unsteady light; to emit a
      dazzling or painfully bright light.

   3. To shine out with gaudy colors; to flaunt; to be
      offensively bright or showy.

            With ribbons pendant, flaring about her head.
                                                  --Shak.

   4. To be exposed to too much light. [Obs.]

            Flaring in sunshine all the day.      --Prior.

   5. To open or spread outwards; to project beyond the
      perpendicular; as, the sides of a bowl flare; the bows of
      a ship flare.

   {To flare up}, to become suddenly heated or excited; to burst
      into a passion. [Colloq.] --Thackeray.