What is the meaning of worn out?

verb

• Exhaust or get tired through overuse or great strain or stress.
  • usage: "We wore ourselves out on this hike"
  • synonyms: tire, wear upon, tire out, wear, weary, jade, wear out, outwear, wear down, fag out, fag, fatigue
• Go to pieces.
  • usage: "The lawn mower finally broke"; "The gears wore out"; "The old chair finally fell apart completely"
  • synonyms: break, wear, wear out, bust, fall apart
• Deteriorate through use or stress.
  • usage: "The constant friction wore out the cloth"
  • synonyms: wear, wear off, wear out, wear down, wear thin

adjective

• 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