zenith

noun

ze·​nith ˈzē-nəth How to pronounce zenith (audio)
Canadian also and British usually ˈze-nəth
-nith
Synonyms of zenithnext
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 powers …John 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.
But the newspaper hit its zenith during World War II, and perhaps its most important contributor was the cartoonist Bill Mauldin. Bill McKibben, The New York Review of Books, 27 Mar. 2026 Klosterman believes right now is likely the zenith. Lila Seidman, Los Angeles Times, 26 Mar. 2026 Miami Music Week is at its zenith this weekend, its cacophonous diversions and decibels aimed at the spring break crowd and other ears that haven’t been around for very long, highlighted by the DJ bonfire known as Ultra Music Festival. Ben Crandell, Sun Sentinel, 25 Mar. 2026 With his mother, wife and daughter in the stands, the night represented a personal zenith. Troy Renck, Denver Post, 22 Mar. 2026 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 5 Apr. 2026.

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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