Blush v. i. [imp. & p. p. Blushed p. pr. & vb. n. Blushing.]
  1. To become suffused with red in the cheeks, as from a sense of shame, modesty, or confusion; to become red from such cause, as the cheeks or face.
  To the nuptial bower
  I led her blushing like the morn.   --Milton.
     In the presence of the shameless and unblushing, the young offender is ashamed to blush.   --Buckminster.
  He would stroke
  The head of modest and ingenuous worth,
  That blushed at its own praise.   --Cowper.
  2. To grow red; to have a red or rosy color.
  The sun of heaven, methought, was loth to set,
  But stayed, and made the western welkin blush.   --Shak.
  3. To have a warm and delicate color, as some roses and other flowers.
     Full many a flower is born to blush unseen.   --T. Gray.