emergency brake

noun

: a brake (as on an automobile) that can be used for stopping in the event of failure of the main brakes and to keep the vehicle from rolling when parked

Examples of emergency brake in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Once stationary, turn off all lights except the hazard flashers, engage the emergency brake, and release the brake pedal to ensure your tail lights are not illuminated, reducing the risk of other drivers colliding with your stationary vehicle. Nc Weather Bot, Charlotte Observer, 3 June 2026 Once stationary, deactivate all lights except the hazard flashers, engage the emergency brake, and release the brake pedal to ensure your tail lights are not illuminated, reducing the risk of other drivers colliding with your stationary vehicle. Bay Area Weather Report, Mercury News, 2 June 2026 After someone activated the train’s emergency brake, Goetz sat down. Kevin Lozano, Harpers Magazine, 2 June 2026 The train driver did apply the emergency brake, but was unable to avoid a collision. Adam England, PEOPLE, 26 May 2026 See All Example Sentences for emergency brake

Word History

First Known Use

1871, in the meaning defined above

Time Traveler
The first known use of emergency brake was in 1871

Browse Nearby Words

Cite this Entry

“Emergency brake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emergency%20brake. Accessed 7 Jun. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster