Is “Gearbox” a Scrabble word?
Yes
GEARBOX
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 Gearbox
noun
1.An enclosed gear train.
2.That part of a car's transmission containing the train of gears, and to which the gear lever is connected.
Synonyms: transmission