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.
As of late afternoon, several lanes of the highway were still closed to traffic as an emergency crew cleaned up the spill just ahead of the daily rush hour for West Broward residents. David Lyons, Sun Sentinel, 11 Feb. 2026 Members hold signs at busy traffic intersections and highway overpasses during morning and afternoon rush hours. Taylor Seely, AZCentral.com, 10 Feb. 2026 There must be a way to have a smooth-running mass transit system here, at least from morning rush hour into the evening. Dp Opinion, Denver Post, 10 Feb. 2026 County leaders estimate about 1,300 drivers pass through the area during rush hour, and traffic can back up quickly. Conor McGill, CBS News, 7 Feb. 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 14 Feb. 2026.

Kids Definition

rush hour

noun
: a period of the day when traffic is very heavy or business is very brisk
Last Updated: - Updated example sentences
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