Guest

gearbox JUST WRITTEN FOR YOU

/ˈɡɪər.bɒks/ · gear.box
noun
  1. An enclosed gear train. The engineer carefully inspected the gearbox to ensure it was functioning properly.
noun
  1. That part of a car's transmission containing the train of gears, and to which the gear lever is connected. The driver shifted gears by moving the gear lever in the gearbox.

Synonyms

Did you know? The term 'gearbox' is often used interchangeably with 'transmission', but technically, a gearbox refers specifically to the mechanical enclosure containing gears, whereas a transmission encompasses the entire system of gears and other components.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 21, 2026