Is “Simul” a Scrabble word?
Yes
SIMUL
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 Simul
/ˈsɪməl/
noun
1.A simultaneous exhibition: one player, typically very strong, plays several games at the same time against different opponents, typically weaker.