Is “Shadowboxes” a Scrabble word?
Yes
SHADOWBOXES
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 Shadowboxes
noun
1.A diorama
verb
1.To practice moves without an actual opponent, often in front of a mirror.