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

Conrad Samuels is at the Coney Island Overhaul Shop, working on a gearbox for a subway car-wheel motor. — Chris Smith, Curbed, 22 Sep. 2026

Its direct-drive setup eliminates the gearbox entirely while boosting torque to 1,000 Nm (737 lb-ft) for handling severe terrain. — New Atlas, 13 Sep. 2026

There are plenty of Ostalgie museums in today’s united Germany, furnished with memorabilia of the German Democratic Republic, from twigs of barbed wire to Trabant gearboxes. — Isaac Chotiner, New Yorker, 3 Sep. 2026

My zero-mile review Slingshot came with a five-speed manual gearbox (highly recommended), but an auto with paddle shifters is also available. — William Roberson, Forbes.com, 29 Aug. 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