noon

noun

1
: midday
specifically : 12 o'clock at midday
2
archaic : midnight
used chiefly in the phrase noon of night
3
: the highest point

Examples of noon in a Sentence

The party will take place from noon to 4 p.m. He showed up at precisely 12 noon.
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.
Look for lingering rains that keep rain chances around 58% from 9 a.m. to noon and then drop to 41% at afternoon rush hour. Miami Herald, 14 July 2025 The bridge walk is set for Sept. 1, 2025, with traffic closed for the walk from 6:30 a.m. to noon, the Authority said. Jenna Prestininzi, Freep.com, 14 July 2025 Two-day passes and July 12 passes for the Veterans Park concerts this year were sold out before noon July 11, according to a media release. Piet Levy, jsonline.com, 12 July 2025 The Grand Canyon Regional Communications Center received a report of an unresponsive hiker on the trail, below Cedar Ridge, on July 8, just before noon, according to NPS. ABC News, 10 July 2025 See All Example Sentences for noon

Word History

Etymology

Middle English, from Old English nōn ninth hour from sunrise, from Latin nona, from feminine of nonus ninth; akin to Latin novem nine — more at nine

First Known Use

13th century, in the meaning defined at sense 1

Time Traveler
The first known use of noon was in the 13th century

Browse Nearby Words

Cite this Entry

“Noon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/noon. Accessed 21 Jul. 2025.

Kids Definition

noon

noun
: the middle of the day : 12 o'clock in the daytime
noon adjective
Etymology

Old English nōn "ninth hour from sunrise," derived from Latin nona, a feminine form of nonus "ninth," from novem "nine"

Word Origin
Noon has not always meant "12 o'clock in the daytime." In the ancient Roman way of keeping track of time, the hours of the day were counted from sunrise to sunset. The ninth hour of their day (about 3 p.m. nowadays) was called nona, Latin for "ninth." In the early period of English, the word was borrowed as nōn, also referring to the ninth hour after sunrise. By the 14th century, however, the word came to be used for midday, 12 o'clock, as we use it today.

More from Merriam-Webster on noon

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