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.
The American Heart Association recommends that adults get at least two-and-a-half hours per week of moderate-intensity physical activity, or one-and-a-half hours per week of vigorous activity, or a combination of both. Dr. Cyrus Mowdawalla, ABC News, 27 Oct. 2025 In the first half hour there will be time to socialize, network, and enjoy refreshments. News Release, San Diego Union-Tribune, 25 Oct. 2025 The game was moved up two-and-a-half hours because of bad weather in the forecast. Mike Waters, Fort Worth Star-Telegram, 24 Oct. 2025 While the full half hour video is worth watching for the clear mutual stannery on display, one moment in particular is catching the internet’s eyes and ears. James Factora, Them., 21 Oct. 2025 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 28 Oct. 2025.

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
Last Updated: - Updated example sentences
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