Is “Signet” a Scrabble word?
Yes
SIGNET
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 Signet
/ˈsɪɡ.nət/
noun
1.An object (especially a ring) formerly used to impress a picture into the sealing wax of a document as a proof of its origin