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Definition of "lightbulb" []

  • Alternative spelling of light bulb. (noun)

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Use "lightbulb" in a sentence
  • "We can't know if changing the lightbulb is an improvement."
  • "If you know what that means in English, the lightbulb is already on for you to understand it in Spanish."
  • "Under the lightbulb was a large, heavy old table, the kind with square legs and a white porcelain finish."