Definitions of wherein

1. in what; " wherein consists this matter?"

2. in the course or during which; " a period wherein he did not work"

3. In which; in which place, thing, time, respect, or the like; - used relatively.

4. In what; - used interrogatively.

5. In which; in which time. Place etc.: used as a relative; in what: used in a question.

6. In what particular or regard.

7. In which thing, place, etc.; in whatever.

8. Into which; in which thing, time, respect, book, & c.; in what.