What is the meaning of Glow?

2. To emit heat and light without a flame.

   To emit heat and light without a flame.

   Of a fire: to emit heat and light.

   To emit light brightly and steadily as if heated to a high temperature; to shine.

   To be very hot; also, to be on fire; to burn.

   1. Of a colour: to be bright; also, of a thing: to have a bright colour.

      Of a colour: to be bright; also, of a thing: to have a bright colour.

      Of a person: to display intense emotion.

      Of a person's body or a part of it: to feel hot and often to flush (“become suffused with a reddish colour”) as well, due to an emotional response, exertion, etc.

      To be involved in an (chiefly online) undercover sting operation, especially by American federal agencies.

      To create a threatening online post that may involve violence, and look suspicious enough to attract a police investigation.

      1. To emit (flame).
      2. To expose (someone) to the authorities.
      3. To make (something) hot; to heat.

      To emit (flame).

      To expose (someone) to the authorities.

      To make (something) hot; to heat.

      A state of heat and light being emitted by a hot object.

      A state of heat being emitted by a person or an animal's body.

      A state of light being emitted by something (for example, a bioluminescent animal or fungus, or a mineral) which is not hot; luminescence.

      1. A state of brightness or warmth of colour; specifically, a reddish colour on a person's face indicating health or youth; a flush.

         A state of brightness or warmth of colour; specifically, a reddish colour on a person's face indicating health or youth; a flush.

         A condition of being passionate or having warm feelings; an ardour.

         To look intently; to stare.

         coal

         alternative form of glewen (“to play music, have fun”)

         alternative form of glewen (“to glue”)

         Source: wiktionary.org