Meaning of “expire” in the English Dictionary

"expire" in British English

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expireverb [ I ]

uk /ɪkˈspaɪər/ us /ɪkˈspaɪr/

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

"expire" in American English

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expireverb [ I ]

us /ɪkˈspɑɪər/

expire verb [ I ] (END)

(of something that lasts for a fixed length of time) to end or stop being in use:

My passport will expire next year.

expire verb [ I ] (DIE)

fml to die

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

"expire" in Business English

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expireverb [ I ]

uk /ɪkˈspaɪər/ us

to come to an end after a fixed length of time:

This offer expires on 31 March 2012.
set/scheduled/due to expire The warranty period is due to expire at the end of November.
Under current law, the state's earned-income tax credit would expire after this year.

FINANCE, STOCK MARKET if an option (= the right to buy or sell particular shares) expires, it can no longer be exercised (= used):

The investment options expire on February 5.

(Definition of “expire” from the Cambridge Business English Dictionary © Cambridge University Press)