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gearbox

American  
[geer-boks] / ˈgɪərˌbɒks /
Or gear box

noun

  1. a transmission, as in an automobile.

  2. a shield or housing for gears.


gearbox British  
/ ˈɡɪəˌbɒks /

noun

  1. the metal casing within which a train of gears is sealed

  2. this metal casing and its contents, esp in a motor vehicle

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of gearbox

First recorded in 1885–90; gear + box 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

ZF, a supplier of gearboxes and other auto parts to carmakers such as BMW and Volkswagen, said the deal will help reduce debt and allow it to focus its resources on core technologies.

From The Wall Street Journal

The trend is accelerating: In the second quarter of 2025, imports of manual gearboxes from China rose almost threefold, according to the German Economic Institute think tank.

From The Wall Street Journal

Moss led from pole position but retired with a broken gearbox early on, handing the initiative to Brabham, who had been tracking his rival a short distance behind.

From BBC

Are any of the top three drivers in danger of a grid penalty for changing engine, gearbox etc?

From BBC

The German gearbox maker’s implied fourth quarter feels relatively unambitious, they add.

From The Wall Street Journal