definition of
wear out

[1] #1 wear out v. exhaust or get tired through overuse or great strain or stress; "We wore ourselves out on this hike". wn

[2] #2 wear out v. go to pieces; "The lawn mower finally broke"; "The gears wore out"; "The old chair finally fell apart completely". wn

[3] #3 wear out v. deteriorate through use or stress; "The constant friction wore out the cloth". wn