gaslight - definition and synonyms

noun 

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/ˈɡæsˌlaɪt/
singulargaslight
pluralgaslights
  1. 1
    [uncountable] the light that burning gas produces
  2. 2

    gaslight

    or

    gas lamp

    [countable] an object that produces light by burning gas, mainly used during the 19th and early 20th centuries