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• eta
  eta

  noun

  the seventh letter of the Greek alphabet (H, η).
• E.T.A.
  E.T.A.

  abbreviation

  estimated time of arrival.
• ETA
  ETA

  abbreviation

  estimated time of arrival

eta

¹ American  

[ay-tuh, ee-tuh] / ˈeɪ tə, ˈi tə /

noun

1. the seventh letter of the Greek alphabet (H, η).

2. the vowel sound represented by this letter.

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E.T.A. ² American  

Or ETA

abbreviation

1. estimated time of arrival.

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ETA ¹ British  

abbreviation

1. estimated time of arrival

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ETA ² British  

/ ˈɛtə /

acronym

1. Euzkadi ta Askatsuna: an organization of militant Basque nationalists attempting to gain independence for the Basques, esp those ruled by Spain, until a ceasefire in 1998, by means of guerrilla warfare

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eta ³ British  

/ ˈiːtə /

noun

1. the seventh letter in the Greek alphabet (Η, η), a long vowel sound, transliterated as e or ē

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eta ⁴ British  

/ ˈeɪtə /

noun

1. (in Japan, formerly) a member of a class of outcasts who did menial and dirty tasks

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Etymology

Origin of eta

< Greek êta; compare Hebrew ḥeth heth

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Example Sentences

See Examples For:

eta E.T.A. ETA

But other variants – eta, theta, iota – were quickly steamrolled and are now irrelevant.

From Seattle Times ● Dec. 14, 2021

The importance of those men dressed in white is clearly shown by the symbol that looks like an H, the Greek letter eta.

From National Geographic

About one-thirtieth of the times that a pi meson hit a deuterium nucleus, out came the eta meson, which decays into three pions.

From Time Magazine Archive

Status Symbol The H on the men’s clothing is the Greek letter eta.

From National Geographic

It says to the eta, "come into humanity and society, receive the protection of law, and the welcome of your fellows; let memory forget the past and charity make a new future."

From The Religions of Japan From the Dawn of History to the Era of Méiji by William Elliot Griffis

“Home tonight, hopefully,” the 25-year-old driver said about Dakar, an E.T.A. that would have been unthinkable a few years ago.

From New York Times ● Nov. 8, 2022

The ballet was based on a story called ‘The Nutcracker and the Mouse King’ by the German writer E.T.A.

From Fox News ● Dec. 18, 2018

Ratmansky, who trained at the Bolshoi and then continued his apprenticeship in the West, has scooped up myriad themes from E.T.A.

From Los Angeles Times ● Dec. 12, 2015

Kubin, though, was primarily an artist, and he illustrated many of the visionary works of E.T.A.

From Washington Post ● Jan. 21, 2015

One of Richard's most strongly marked characteristics was the tenacity with which he held any idea that once entered his mind; and it is worthy of note that about this period he read E.T.A.

From Richard Wagner Composer of Operas by John F. Runciman

He said his ETA was 5 p.m., and it ended up being 5:25 p.m., typical 405 Freeway.

From Los Angeles Times ● Jul. 10, 2026

At some point, you realize the ETA is 30 minutes, and the remaining distance is three miles.

From Barron's ● May 3, 2026

Connecting passengers only need an ETA if they are connecting to a flight within the U.K.

From The Wall Street Journal ● Mar. 6, 2026

If a person's ETA application is rejected, the government says they will be told the reason and can apply again.

From BBC ● Feb. 24, 2026

She quickly opened a message to her father, then typed: ETA?

From "The Parker Inheritance" by Varian Johnson

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