gearbox

noun

gear·​box ˈgir-ˌbäks 

1

: gearing sense 2

2

: transmission sense 3

Examples of gearbox in a Sentence

Recent Examples on the Web

Power is sent through a six-speed wide-ratio gearbox, with the hydraulic clutch integrated into the gearbox's mainshaft. — New Atlas, 6 Nov. 2026

That gearbox wasn’t available in the hypercar until the Epitome variant was unveiled in 2024, more than 13 years after the Huayra first debuted. — Bryan Hood, Robb Report, 2 Nov. 2026

The marine engine is connected to a Toyota H152 gearbox, a higher-ratio version of the five-speed manual transmission this Land Cruiser came with from the factory. — Stephen Edelstein, The Drive, 31 Oct. 2026

By contrast, an electric design, with no combustion, gearbox, or oil circuits, avoids much of that energy burden. — IEEE Spectrum, 28 Oct. 2026

Word History

First Known Use

1887, in the meaning defined at sense 1

Rhymes for gearbox

• botox
• checkbox
• comox
• cornstalks
• cowpox
• crosswalks
• deadlocks
• detox
• feedstocks
• hemlocks
• icebox
• jukebox

Kids Definition

gearbox

noun

gear·​box ˈgi(ə)r-ˌbäks 

: transmission sense 3