
Wear out
Gradual Process
Understand that 'wear out' implies a slow process, not an immediate breakage.

After years of use, my laptop finally wore out.
Not Always Visible
'Wear out' can refer to invisible damage; something can look fine but not function properly.

Despite being shiny, the gears inside the watch have worn out.
Metaphorical Usage
'Wear out' can be used metaphorically to describe overuse of non-physical things.

Playing the same song repeatedly has worn out its appeal.
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