What is the meaning of fading?

noun

• Weakening in force or intensity.
  • usage: "attenuation in the volume of the sound"
  • synonyms: attenuation

verb

• Become less clearly visible or distinguishable; disappear gradually or seemingly.
  • usage: "The scene begins to fade"; "The tree trunks are melting into the forest at dusk"
  • synonyms: fade, melt
• Lose freshness, vigor, or vitality.
  • usage: "Her bloom was fading"
  • synonyms: fade, wither
• Disappear gradually.
  • usage: "The pain eventually passed off"
  • synonyms: evanesce, fade, blow over, pass off, fleet, pass
• Become feeble.
  • usage: "The prisoner has be languishing for years in the dungeon"
  • synonyms: languish, fade