Meaning of “paranoia” in the English Dictionary

british 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)