seat belt

noun

: an arrangement of straps designed to hold a person steady in a seat (as in an airplane or automobile)

Examples of seat belt in a Sentence

Recent Examples on the Web
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Whelan was panicked by the assault, according to the court document, and struggled to unbuckle her seat belt. Nick Lentz, CBS News, 1 Apr. 2026 Perhaps what was an anomaly — but thank goodness miraculous — was the flight attendant, who was seated in her jumpseat with her seat belt and harness on, surviving the crash when she was ejected 300 feet. Ashley J. Dimella, FOXNews.com, 28 Mar. 2026 Instead, keep them in the back in a crate or carrier, or in the backseat with a harness that attaches to the seat belt. Cody Godwin, USA Today, 27 Mar. 2026 Most high-back booster seats come with a five-point harness that provides the most safe and secure fit, while backless booster seats secure your child using the car’s seat belt. Bestreviews, Mercury News, 27 Mar. 2026 See All Example Sentences for seat belt

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of seat belt was in 1932

Browse Nearby Words

Cite this Entry

“Seat belt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seat%20belt. Accessed 4 Apr. 2026.

Kids Definition

seat belt

noun
: a strap designed to hold a person in a seat (as in an automobile or airplane)

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