Is “Sutra” a Scrabble word?
Yes
SUTRA
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 Sutra
/ˈsuːtɹə/
noun
1.A rule or thesis in Sanskrit grammar or Hindu law or philosophy.
2.A scriptural narrative, especially a discourse of the Buddha.