Is “Bossism” a Scrabble word?
Yes
BOSSISM
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 Bossism
noun
1.The domination of a political party by a single, powerful person (the boss)