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English definition of “expire”

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expire

verb [I] uk   /ɪkˈspaɪər/ us    /-ˈspaɪr/

expire verb [I] (END)

C2 If something that lasts for a fixed length of time expires, it comes to an end or stops being in use: My passport expires next month. The contract between the two companies will expire at the end of the year.
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expire verb [I] (DIE)

literary to die
(Definition of expire from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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