wear out

phrasal verb·1 sense·particle out

Meanings

1

Become unusable through use

Why “out”? Going outward until nothing remains. Supply is gone.

These shoes have worn out.
These shoes have been used until they're no longer usable.
The old tyres wore out.
The old tyres became unusable through use.

Don't confuse with

wear outwear down

Wear out means become unusable through use. Wear down means gradually make something or someone weaker.

Test yourself

These shoes have worn out. What does it mean?

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