zenith

noun

ze·​nith ˈzē-nəth How to pronounce zenith (audio)
 Canadian also and British usually  ˈze-nəth,
-nith
1
: the point of the celestial sphere that is directly opposite the nadir and vertically above the observer see azimuth illustration
2
: the highest point reached in the heavens by a celestial body
3
: culminating point : acme
at the zenith of his powersJohn Buchan

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Reaching the Zenith

When you reach the zenith, you're at the top, the pinnacle, the summit, the peak. Zenith developed from an Arabic phrase meaning "the way over one's head," and then traveled through Old Spanish, Medieval Latin, and Middle French before arriving in English. As long ago as the 1300s, English speakers used zenith to name the highest point in the celestial heavens, directly overhead. By the 1600s, zenith was being used for other high points as well. The celestial term is often contrasted with nadir, which refers to the point that is vertically downward from the observer (imagine a line going through the Earth from the observer's feet and out the other side into the sky). Figuratively, nadir simply means "the lowest point."

Examples of zenith in a Sentence

at the zenith of her career as a dancer
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.
Many Republicans have ended their political careers by fighting with Trump, who is now at the zenith of his political power. W. James Antle Iii, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 12 Mar. 2025 In President Donald Trump’s idealized framing, the United States was at its zenith in the 1890s, when top hats and shirtwaists were fashionable and typhoid fever often killed more soldiers than combat. Will Weissert, Chicago Tribune, 10 Mar. 2025 The cryptocurrency experienced some very impressive gains in the months leading up to this local zenith, after trading below $10.00 as recently as September, additional figures provided by Binance and reported by TradingView reveal. Charles Lloyd Bovaird Ii, Forbes, 13 Dec. 2024 The era of Peak TV, characterized by an abundance of high-end fiction content, has reached its zenith. Jamie Lang, Variety, 17 Feb. 2025 See All Example Sentences for zenith

Word History

Etymology

Middle English cenyth, senyth, from Middle French cenit, from Medieval Latin, from Old Spanish zenit, modification of Arabic samt (al-ra's) way (over one's head)

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of zenith was in the 14th century

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Cite this Entry

“Zenith.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zenith. Accessed 27 Mar. 2025.

Kids Definition

zenith

noun
ze·​nith ˈzē-nəth How to pronounce zenith (audio)
1
: the point in the heavens directly overhead
2
: the highest point

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