Definition of lightbulb

Scrabble & Words with Friends points

  • lightbulb is a valid Scrabble word with a point value of 17 according to TWL06 dictionary
  • lightbulb is a valid Words with Friends word with a point value of 22 according to ENABLE dictionary

Definition of lightbulb

  • electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity (noun)


    1. bulb
    2. electric-light bulb
    3. electric light
    4. incandescent lamp
    5. light bulb

See definition of lightbulb in Merriam Webster