half hour

noun

1
: thirty minutes
2
: the middle point of an hour
half-hourly adverb or adjective

Examples of half hour in a Sentence

Trains depart every half hour. I waited a half hour in line.
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.
About a half hour before the man was found, a crash was spotted less than a mile away near Harrison and Lotus. Cbs Chicago Team, CBS News, 5 Apr. 2026 After a half hour working out with the flywheel, which works like a zero-gravity rowing machine, Wiseman was impressed. Tariq Malik, Space.com, 3 Apr. 2026 Break up long periods of sitting by standing for 5 to 10 minutes every half hour, switching to a standing desk, or standing up every time (for example, when the phone rings). Jenny McCoy, SELF, 1 Apr. 2026 After about eight-and-a-half hours in space, the astronauts will sleep for a short period. Richard Tribou, The Orlando Sentinel, 1 Apr. 2026 See All Example Sentences for half hour

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of half hour was in the 15th century

Browse Nearby Words

Cite this Entry

“Half hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/half%20hour. Accessed 6 Apr. 2026.

Kids Definition

half hour

noun
1
: thirty minutes
2
: the middle point of an hour
half-hourly
ˈhaf-ˈau̇(ə)r-lē
ˈhȧf-
adverb or adjective
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