rush hour

noun

: a period of the day when the demands especially of traffic or business are at a peak

Examples of rush hour in a Sentence

We got caught in the morning rush hour.
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.
Recent heavy rain has also shown weak spots in Atlanta's road infrastructure as major sections of the Atlanta Connector flooded during rush hour traffic, and even forced the Waymo driverless car service to suspend operations as road conditions became too unsafe. Irene Wright, USA Today, 29 May 2026 Perhaps you got stuck in the mess last week when rush hour traffic was snarled by a tractor-trailer that got stuck on the concrete barrier at the intersection of Stanwix Street and Fort Pitt Boulevard. John Shumway, CBS News, 28 May 2026 In his letter, Beyer argued that the planned structure, which will sit adjacent to Arlington Memorial Bridge, risks choking traffic for commuters entering the District from Virginia, particularly during rush hour and major public events. Claire Carter, The Washington Examiner, 27 May 2026 The collision happened during morning rush hour near Buggenhout town, about 30 kilometers (20 miles) northwest of the capital, Brussels. ABC News, 26 May 2026 See All Example Sentences for rush hour

Word History

First Known Use

1878, in the meaning defined above

Time Traveler
The first known use of rush hour was in 1878

Browse Nearby Words

Cite this Entry

“Rush hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rush%20hour. Accessed 3 Jun. 2026.

Kids Definition

rush hour

noun
: a period of the day when traffic is very heavy or business is very brisk
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