1. in that place, document, or matter
Usage: formal
2. in that respect or particular
Usage: formal

Examples

• The contract contains several important clauses, and therein lies the problem.
• She opened the box and found the missing jewelry therein.
• The report discusses various issues, and therein we find the solution.
• He examined the document and discovered errors therein.
• The building has many rooms, and therein are stored valuable artifacts.
• The law is complex, and therein lies the difficulty for most citizens.