Gearbox and Gear

Gearbox noun - The shell (metal casing) in which a train of gears is sealed.

Gear and gearbox are semantically related in gear box topic. In some cases you can use "Gear" instead a noun "Gearbox", when it comes to topics like reduction gear.

Nearby Word: gear

Gear noun - Items needed for the performance of a task or activity.

Gearbox and gear are semantically related in gear box topic. You can use "Gearbox" instead a noun "Gear", if it concerns topics such as reduction gear.

Nearby Words: geared, gearing, gearbox