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

"paranoia" in British English

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paranoianoun

uk   /ˌpær.əˈnɔɪ.ə/ us   /ˌper.əˈnɔɪ.ə/
[C or U] an extreme and unreasonable feeling that other people do not like you or are going to harm or criticize you: There's a lot of paranoia about crime at the moment.
[U] specialized psychology Someone who has paranoia has unreasonable false beliefs as a part of another mental illness, 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 strong tendency to feel that you cannot trust other people or that other people have a bad opinion of you, or medical a mental illness that causes extreme feelings that others are trying to harm you
(Definition of paranoia from the Cambridge Academic Content Dictionary © Cambridge University Press)
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