English dictionary

therein

/,/D//(@)/r'/I/n/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

adverb

(formal) in or into that thing or place

adv.all

Examples
They can read therein what our plans are.

Synonyms in that in this

Source: WordNet 3.0
In that or this place, time, or thing; in that particular or respect.

adverb

Source: webster1913