there‧in /ðeərˈɪn $ ðer-/
adverb formal1. in that place, or in that piece of writing:
See Thompson, 1983, and the references cited therein.2. therein lies something used to say that something is caused by or comes from a particular situation:
The treaty was imposed by force, and therein lay the cause of its ineffectiveness. ⇒
herein [TahlilGaran] Dictionary of Contemporary English ▲