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English definition of “exhaust”

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exhaust

verb [T] uk   /ɪɡˈzɔːst/ us    /-ˈzɑːst/

exhaust verb [T] (TIRE)

C1 to make someone extremely tired: The long journey exhausted the children. I've exhausted myself with all that cleaning.
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exhaust verb [T] (USE)

to use something completely: How long will it be before the world's fuel supplies are exhausted? I'm afraid he's exhausted my patience. We seem to have exhausted this topic of conversation (= we have nothing new to say about it).

exhaust

noun [U] uk   /ɪɡˈzɔːst/ us    /-ˈzɑːst/
C1 the waste gas from an engine, especially a car's, or the pipe the gas flows through: Car exhaust is the main reason for the city's pollution.
(Definition of exhaust from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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