eureka

English · Español · Deutsch · Português · Thesaurus

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

eureka^¹

/jəˈɹiː.kə/ UK
/jʊˈɹiː.kə/ US

Rhymes with -iːkə

Where it comes from

From Ancient Greek εὕρηκα (heúrēka, “I have found”), perfect active indicative first person singular of εὑρίσκω (heurískō, “to find”). Archimedes supposedly exclaimed this when he figured out how to determine the density of an object. First use appears c. 1603 in a text by Philemon Holland.

interjection eureka!

An exclamation indicating a sudden discovery. I rolled back the rug and eureka - there it was!

noun

uncountable Synonym of constantan (“copper-nickel alloy”).
Similar: constantan

Eureka^²

proper noun

A locality in the Byron council area, north-eastern New South Wales, Australia.
A rural locality in the Bundaberg Region, Queensland, Australia.
A small suburb of Ballarat, Victoria, Australia.
A community in Pictou County, Nova Scotia, Canada.
A small research base in Fosheim Peninsula, Ellesmere Island, Qikiqtaaluk Region, Nunavut, Canada.
A settlement in Waikato district, Waikato region, New Zealand.
A city, the county seat of Humboldt County, in northern California. Before dawn this morning, five of us drove into Eureka.
A ghost town in Nevada County, California.
A mining ghost town in San Juan County, Colorado.
A city, the county seat of Woodford County, Illinois.
An unincorporated community in Lawrence County, Indiana, also known as Geiberson.
An unincorporated community in Luce Township, Spencer County, Indiana.
A city, the county seat of Greenwood County, Kansas.
A city in St. Louis County, Missouri.
An unincorporated community in Cinque Hommes Township, Perry County, Missouri.
A town in Lincoln County, Montana.
An unincorporated town and census-designated place, the county seat of Eureka County, Nevada.
A town in Wayne County, North Carolina.
An unincorporated community in Warrington Township, Bucks County and Montgomery Township, Montgomery County, Pennsylvania.
An unincorporated community in Aiken County, South Carolina.
A city in McPherson County, South Dakota.
A ghost town in Crockett County, Texas.
A ghost town in Franklin County, Texas.
A tiny city in Navarro County, Texas.
A small city in Juab County, Utah.
An unincorporated community in Walla Walla County, Washington.
An unincorporated community in Pleasants County, West Virginia.
A town in Polk County, Wisconsin.
An unincorporated census-designated place in the town of Rushford, Winnebago County, Wisconsin.
A number of townships in the United States, listed under Eureka Township.
A given name, like for the protagonists of Eureka's Castle or Eureka Seven.

Thesaurus

Closest in meaning: constantan, town, bingo, rebecca, argentan, corinthian brass, electer, arsenical copper, copper-nickel, kupfernickel, monel, electre, uchatius bronze, elinvar, nichrome, ekatantalum

Translations

Every language

intj exclamation indicating sudden discovery

Español	eureka
日本語	我発見せり ware hakken seri, わかった wakatta, 見つけた mitsuketa, ユーレカ yūreka, エウレカ eureka
中文	尤里卡 yóulǐkǎ, 我發現了！ /我发现了！ Wǒ fāxiàn le!, 我找到了！ Wǒ zhǎo dào le!
Português	heureca, eureca
Français	eurêka
Deutsch	heureka
Italiano	eureka
Ελληνικά	εύρηκα évrika
Română	evrica
Русский	э́врика évrika
Tiếng Việt	ơ-rê-ca
العربية	يُورِيكَا yūrīkā, لَقَدْ وَجَدتُهَا! laqad wajadtuhā!

Talk about this word

Cite this

MLA

"eureka." Wiktionary, via Micwyn, micwyn.com/word/eureka. Accessed 6 Nov. 2026.

APA

eureka. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/eureka

Chicago

"eureka." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/eureka.

BibTeX

@misc{eureka_2026,
  title = {eureka},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/eureka},
  urldate = {2026-11-06}
}