Is “Twelves” a Scrabble word?
Yes
TWELVES
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 Twelves
noun
1.A group of twelve items.
“Fractions would be a little easier if we counted by twelves.”
2.A twelve-bore gun.
3.A jury (normally composed of twelve persons).