Is “Diwan” a Scrabble word?
Yes
DIWAN
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 Diwan
noun
1.A holder of any of various offices in various (usually Islamic) countries, usually some sort of councillor.