Is “Triptych” a Scrabble word?
Yes
TRIPTYCH
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 Triptych
/ˈtɹɪptɪk/
noun
1.A picture or series of pictures painted on three tablets connected by hinges.
2.A set of three se-tenant postage stamps that form a composite picture.