What is the meaning of wear 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, 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, bust, fall apart
• Deteriorate through use or stress.
  • usage: "The constant friction wore out the cloth"
  • synonyms: wear, wear off, wear down, wear thin