(1)   An appearance of reflected light
(2)   Light from nonthermal sources
(3)   A feeling of considerable warmth
"The glow of new love"
"A glow of regret"
(4)   The amount of electromagnetic radiation leaving or arriving at a point on a surface
(5)   A steady even light without flames
(6)   The phenomenon of light emission by a body as its temperature is raised
(7)   An alert and refreshed state


(8)   Experience a feeling of well-being or happiness, as from good health or an intense emotion
"She was beaming with joy"
"Her face radiated with happiness"
(9)   Be exuberant or high-spirited
"Make the people's hearts glow"
(10)   Emit a steady even light without flames
"The fireflies were glowing and flying about in the garden"
(11)   Have a complexion with a strong bright color, such as red or pink
"Her face glowed when she came out of the sauna"
(12)   Shine intensely, as if with heat
"The coals were glowing in the dark"
"The candles were burning"


Possibly from the Old English glōwan, though this is disputed because the corresponding words in Old Saxon and Old High German are dissimilar, glōjan and gluoen respectively.
It may instead be from an word, glóa. Its ultimate root is probably the Old Teutonic root *glo-. See glass


  1. To give off light from heat or to emit light as if heated.
  2. To radiate some emotional quality like light.
    The zealots glowed with religious fervor.
    The new baby's room glows with bright, loving colors.
    You are glowing from happiness!
  3. To gaze especially passionately at something.
  4. To radiate thermal heat.
    Iron glows red hot when heated to its melting point.
    After their work out, the gymnasts faces were glowing red.
  5. To shine brightly and steadily.
  6. To sweat
    Women glow, men sweat.


  1. The state of a glowing object.
  2. The condition of being passionate or having warm feelings.
  3. The brilliance or warmth of color in an environment or on a person (especially one's face).