Meaning of “tire” in the English Dictionary

"tire" in British English

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tireverb [ I or T ]

uk /taɪər/ us /taɪr/

C2 to begin to feel as if you have no energy and want to rest or go to sleep, or to make someone feel this way:

She's been leading throughout the race, but it now looks as if she's tiring.
Even walking up the stairs at work tires me these days.

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tirenoun [ C ]

uk /taɪər/ us /taɪɚ/

(Definition of “tire” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"tire" in American English

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tireverb [ I/T ]

us /tɑɪər/

tire verb [ I/T ] (LOSE ENERGY)

to cause someone to lose energy, or to be without energy:

[ I ] Weakened by the infection, he tires easily.
[ T ] Running tired her.
[ M ] Going up all those stairs tires me out.
tire of

To tire of something is to become bored with it:

Viewers never tire of nature programs.

tirenoun [ C ]

us /tɑɪər/

tire noun [ C ] (WHEEL)

a rubber ring, usually filled with air, that fits around the wheel of a car, bicycle, or other vehicle:

Most cars now have radial tires.

(Definition of “tire” from the Cambridge Academic Content Dictionary © Cambridge University Press)