What is the meaning of worn-out?

adjective

• Used until no longer useful.
  • usage: "battered trumpets and raddled radios"; "worn-out shoes with flapping soles"
  • synonyms: raddled
• Drained of energy or effectiveness; extremely tired; completely exhausted.
  • usage: "the day's shopping left her exhausted"; "he went to bed dog-tired"; "was fagged and sweaty"; "the trembling of his played out limbs"; "felt completely washed-out"; "only worn-out horses and cattle"; "you look worn out"
  • synonyms: exhausted, dog-tired, fagged, fatigued, played out, spent, washed-out, worn out