Is “Halibut” a Scrabble word?
Yes
HALIBUT
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 Halibut
/ˈhæ.lɨ.bət/
noun
1.A large flatfish of the genus Hippoglossus, which sometimes leaves the ocean floor and swims vertically.