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.
No more long commutes in rush hour. Jessica Guynn, USA Today, 29 June 2026 The crash happened on Friday late afternoon during rush hour. Sylvie Zhuang, CNN Money, 27 June 2026 The quake, which struck during morning rush hour, also mildly shook Tokyo. Will Clark, NBC news, 26 June 2026 The heavy rain started during the afternoon rush hour. Kristi Swartz, AJC.com, 25 June 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 5 Jul. 2026.

Kids Definition

rush hour

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