Is “Manteau” a Scrabble word?
Yes
MANTEAU
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 Manteau
/ˈmæntəʊ/
noun
1.A cloak or gown, especially of a kind popular with women in the 17th and 18th centuries.