Meaning of “insomnia” in the English Dictionary

british dictionary

"insomnia" in British English

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insomnianoun [ U ]

uk /ɪnˈsɒm.ni.ə/ us /ɪnˈsɑːm.ni.ə/

C2 the condition of being unable to sleep, over a period of time:

Holly suffered from insomnia caused by stress at work.

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

"insomnia" in American English

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insomnianoun [ U ]

us /ɪnˈsɑm·ni·ə/

the condition of being unable to sleep

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