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

Uber’s practice of lifting fares when demand outstrips the supply of available drivers, such as during rush hour, is a type of dynamic pricing known as surge pricing. — Dee-Ann Durbin, Los Angeles Times, 20 Oct. 2026

Bow Mar did not clarify how the gate would operate or whether it would be closed during rush hours or 24/7. — Sarah Horbacewicz, CBS News, 20 Oct. 2026

Uber's practice of lifting fares when demand outstrips the supply of available drivers, such as during rush hour, is a type of dynamic pricing known as surge pricing. — Arkansas Online, 19 Oct. 2026

Trying to avoid any rush hour traffic during peak times would mean widening roads and removing the charm of SR 434 in Winter Springs. — Orlando Sentinel Staff, The Orlando Sentinel, 13 Oct. 2026

Word History

First Known Use

1878, in the meaning defined above

Rhymes for rush hour

• bower
• cower
• dour
• flour
• flower
• fower
• glower
• our
• power
• scour
• shower
• sour

Kids Definition

rush hour

noun

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