What is the meaning of dimmed?

verb

• Switch (a car's headlights) from a higher to a lower beam.
  • synonyms: dim, dip
• Become dim or lusterless.
  • usage: "the lights dimmed and the curtain rose"
  • synonyms: dim
• Make dim or lusterless.
  • usage: "Time had dimmed the silver"
  • synonyms: dim
• Make dim by comparison or conceal.
  • synonyms: blind, dim
• Become vague or indistinct.
  • usage: "The distinction between the two theories blurred"
  • synonyms: blur, dim, slur

adjective

• Made dim or less bright.
  • usage: "the dimmed houselights brought a hush of anticipation"; "dimmed headlights"; "we like dimmed lights when we have dinner"
  • synonyms: dim