'Therein' definitions:

Definition of 'therein'

From: WordNet
adverb
(formal) in or into that thing or place; "they can read therein what our plans are" [syn: therein, in this, in that]

Definition of 'Therein'

From: GCIDE
  • Therein \There*in"\, adv. In that or this place, time, or thing; in that particular or respect. --Wyclif. [1913 Webster]
  • He pricketh through a fair forest, Therein is many a wild beast. --Chaucer. [1913 Webster]
  • Bring forth abundantly in the earth, and multiply therein. --Gen. ix. 7. [1913 Webster]
  • Therein our letters do not well agree. --Shak. [1913 Webster]