Is “Mistook” a Scrabble word?
Yes
MISTOOK
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 Mistook
/mɪsˈtʊk/
verb
1.To understand wrongly, taking one thing or person for another.
“Don't mistake my kindness for weakness.”
2.To misunderstand (someone).
3.To commit an unintentional error; to do or think something wrong.