zeta
noun
the sixth letter of the Greek alphabet (Z, ζ).
zeta
American
[zey-tuh, zee-]
/ ˈzeɪ tə, ˈzi- /
noun
-
the sixth letter of the Greek alphabet (Z, ζ).
-
the consonant sound represented by this letter.
ZETA
1
British
/ ˈziːtə /
noun
Zeta
2
British
/ ˈziːtə /
noun
zeta
3
British
/ ˈziːtə /
noun
Usage
What else does zeta mean? Zeta is a letter of the Greek alphabet. As a letter, zeta is popularly encountered in the names of fraternities and sororities. Zeta is also popularly associated with a famous alien abduction story. In men’s rights lingo, zeta refers to a man who refuses to have their masculinity defined by or in terms of women. What are some other words related to zeta?alphaomegamanosphereincel
Etymology
Origin of zeta
First recorded in 1820–30, zeta is from the Greek word zêta
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
For decades, mathematicians have tried to prove the Riemann hypothesis, which says that 100% of the nontrivial zeros of the Riemann zeta function fall on a single vertical line.
From The Wall Street Journal ● Aug. 15, 2026
Among these is the famous zeta ring, a very faint and dusty celestial object first discovered by the Voyager 2 satellite in 1986.
From Salon ● Dec. 19, 2023
“Spring training being closed in March would be worse for us than another covid outbreak, like if they announced the zeta variant was coming. It would be that bad.”
From Washington Post ● Feb. 23, 2022
And he invented a formula for calculating how many primes there are, up to a cutoff, and at what intervals these primes occur, based on the zeroes of the zeta function.
From Science Magazine ● Sep. 24, 2018
If this zeta field is causing this seemingly peculiar biological effect, that gives us a tremendously powerful new tool, for certain time vectors in the generalized matrix become parameters.
From Subspace Survivors by H. R. van Dongen
The firm plans to list itself on the New York Stock Exchange under the ticker symbol "ZETA".
From Reuters ● Apr. 26, 2021
Braze and Zeta also screen as potential takeover targets, along with Klaviyo, down 24% in six months and trading at 21 times earnings.
From Barron's ● Apr. 16, 2026
The research was funded by internal grants from Marian University and Sigma Zeta.
From Science Daily ● Apr. 2, 2026
During that interview, Steinberg said Zeta was partnering with Eightco, where Ives is board chairman.
From Barron's ● Jan. 30, 2026
Zeta sells an AI agent to assist marketers.
From Barron's ● Jan. 30, 2026
All of the upperclassmen in Kappa Zeta are so elite that when they ask someone to do something, they do it.
From "The Freedom Writers Diary" by The Freedom Writers
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
