Meaning of “therein” in the English Dictionary

british dictionary

"therein" in British English

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thereinadverb

uk /ˌðeəˈrɪn/ us /ˌðerˈɪn/ old-fashioned formal

in or into a particular place, thing, etc.:

It is a thrilling tale of a haunted house and the ghosts therein.

Idiom(s)

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

"therein" in American English

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thereinadverb

us /ˌðeərˈɪn/ fml

in or into a particular place, thing, or condition:

Therein lies the risk (= Here is the risk).

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