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

"paranoia" in British English

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uk   /ˌpær.əˈnɔɪ.ə/  us   /ˌper-/
[C or U] an ​extreme and ​unreasonablefeeling that other ​people do not like you or are going to ​harm or ​criticize you: There's a lot of paranoia aboutcrime at the ​moment. [U] specialized psychology Someone who has paranoia has ​unreasonablefalsebeliefs as a ​part of another ​mentalillness, for ​example schizophrenia .
(Definition of paranoia from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"paranoia" in American English

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paranoianoun [U]

 us   /ˌpær·əˈnɔɪ·ə/
a ​strongtendency to ​feel that you cannot ​trust other ​people or that other ​people have a ​badopinion of you, or medical a ​mentalillness that ​causesextremefeelings that ​others are ​trying to ​harm you
(Definition of paranoia from the Cambridge Academic Content Dictionary © Cambridge University Press)
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