noon

noun

Synonyms of noonnext
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.
The Kankakee Sheriff's Office said just before noon, deputies arrived at The Line bar near the Illinois-Indiana state line along Route 114 for reports of a possibly deceased person. Jeramie Bizzle, CBS News, 3 Feb. 2026 The schedule begins with a two-hour block of short films at noon, followed by panel discussion with the shorts filmmakers that shifts into a free lunch catered by Red Rock Tavern. Christopher Arnott, Hartford Courant, 3 Feb. 2026 The inmate, 26-year-old Victor Castillo, escaped around noon from the facility at 5401 Resource Drive, according to Robbie Hoy, a spokesperson for the Tarrant County sheriff’s office. Timia Cobb, Dallas Morning News, 3 Feb. 2026 Attorneys representing the women have requested that the DOJ commit to removing their identities from millions of publicly available files by noon on Wednesday, or else temporarily take the website down. Molly Crane-Newman, New York Daily News, 3 Feb. 2026 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 4 Feb. 2026.

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.

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