therein

/ˌðeəˈrɪn/ adverb formal

Definition

› in a particular document or place: We recommend that you study the report and the proposals contained therein.

therein lies sth › because of the reason that has just been given: But the medicines are expensive, and therein lies the problem.

(Definition of therein adverb from the Cambridge Learner's Dictionary © Cambridge University Press)

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