Is “Cabby” a Scrabble word?
Yes
CABBY
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 Cabby
/ˈkæ.bi/
noun
1.A cabdriver; someone who drives a taxi.