Zeta

//ˈziː.tə// name, noun

name, noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The sixth letter of the modern Greek alphabet (Ζ, ζ) preceded by epsilon (Ε, ε) and followed by eta, (Η, η); or the seventh letter in the ancient Greek alphabet, in which it is preceded by digamma (Ϝ, ϝ)
  2. 2
    A member of Los Zetas, a Mexican criminal syndicate.
  3. 3
    the 6th letter of the Greek alphabet wordnet
  4. 4
    A mathematical function, formally known as the Riemann zeta function.

    "Zeta of 3 is irrational"

Proper Noun
  1. 1
    medieval state roughly equivalent to modern Montenegro. historical
  2. 2
    Acronym of zero-energy thermonuclear assembly/apparatus (“a torus-shaped reactor used in the mid-20th century to carry out experiments in plasma physics and temperature-controlled thermonuclear reactions”). abbreviation, acronym, alt-of

Example

More examples

"The political center of the Serbs had moved to Zeta (Montenegro) and the mystic Prince Jovan Vladimir in the latter part of the tenth century, sometimes called King of Zeta, tried in vain to stop the triumphal march of Tsar Samuel of Bulgaria through the Serb provinces."

Etymology

From the Ancient Greek ζῆτα (zêta). Doublet of zed.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.