Is “Wherein” a Scrabble word?
Yes
WHEREIN
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Wherein
/wɛəɹˈɪn/
adverb
1.How, or in what way.
conjunction
1.Where, or in which location.
2.During which.
3.How, or in what way.