unauthorized Meaning in the Cambridge English Dictionary
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Meaning of “unauthorized” in the English Dictionary

"unauthorized" in British English

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unauthorizedadjective

(UK usually unauthorised) uk   /ʌnˈɔː.θə.raɪzd/  us   /-ˈɑː-/
without someone's ​officialpermission to do something or be in a ​particularplace: Unauthorized ​personnel are not ​admitted beyond this ​point. This unauthorized ​biography of the ​star has ​sold over 10,000 ​copies in ​its first ​week in ​print.
(Definition of unauthorized from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"unauthorized" in American English

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unauthorizedadjective [not gradable]

 us   /ʌnˈɔ·θəˌrɑɪzd/
without ​officialpermission: an unauthorized ​biography An unauthorized ​version of the ​software is being ​soldabroad.
(Definition of unauthorized from the Cambridge Academic Content Dictionary © Cambridge University Press)

"unauthorized" in Business English

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unauthorizedadjective

(UK also unauthorised) uk   us   /ʌnˈɔːθəraɪzd/
not ​officiallyallowed: He ​concealed huge ​losses made from unauthorized ​trading on Asian ​futuresmarkets. Unauthorized ​entry into the United ​States is ​illegal, but being in the country after having ​enteredillegally is not necessarily a ​crime. The ​company has ​started to more ​aggressivelyprosecute unauthorized use of its ​technology.
(Definition of unauthorized from the Cambridge Business English Dictionary © Cambridge University Press)
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