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  • écu
    écu
    noun
    the shield carried by a mounted man-at-arms in the Middle Ages.
  • ECU
    ECU
    noun
    a former money of account of the European Common Market that was used in international finance until the euro was adopted and was based on the combined prorated values of the currencies of member nations.
  • E.C.U.
    E.C.U.
    abbreviation
    English Church Union.

écu

1 American  
[ey-kyoo, ey-ky] / eɪˈkju, eɪˈkü /

noun

écus plural
  1. the shield carried by a mounted man-at-arms in the Middle Ages.

  2. any of various gold and silver coins of France, issued from the 13th through the 18th centuries, bearing the figure of a shield.


ECU 2 American  
[ey-koo, ee-see-yoo] / eɪˈku, ˈiˈsiˈju /

noun

  1. a former money of account of the European Common Market that was used in international finance until the euro was adopted and was based on the combined prorated values of the currencies of member nations.


E.C.U. 3 American  

abbreviation

  1. English Church Union.


écu 1 British  
/ eɪˈkjuː, eky /

noun

  1. any of various former French gold or silver coins

  2. a small shield

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ECU 2 British  
/ ˈiːˈsiːˈjuː, ˈeɪkjuː /

acronym

  1. European Currency Unit: a former unit of currency based on the composite value of several different currencies in the European Union and functioning as both the reserve asset and the accounting unit of the European Monetary System; replaced by the euro in 1999

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of écu1

1695–1705; < French; Old French escu < Latin scūtum shield

Origin of ECU2

E(uropean) C(urrency) U(nit), perhaps with play on écu ( def. )

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:

The marcandiers had to pay an écu; they were tramps clothed in a tolerably good doublet, who passed themselves off as merchants ruined by war, by fire, or by having been robbed on the highway.

From Manners, Customs, and Dress During the Middle Ages and During the Renaissance Period by Jacob, P. L.

Then taking a little leathern purse from his breast, he slipped an écu into the mountaineer's hand.

From A Night on the Borders of the Black Forest by Edwards, Amelia Ann Blanford

The days when the diligences of Europe drew up before an old-time inn, with the sign of a pewter plate, an écu d'or, a holly branch, or a prancing white horse, have long since disappeared.

From The Automobilist Abroad by Mansfield, M. F. (Milburg Francisco)

A pistole now represents 10 francs, and an écu 3 francs.

From Wanderings by southern waters, eastern Aquitaine by Barker, Edward Harrison

Charles would not or could not contribute a single écu d'or, and Joan had to solicit help and funds from the towns.

From Joan of Arc by Gower, Ronald Sutherland

The ECU said leaving the coverage on iPlayer until the Monday morning was also a "serious mistake" and breached guidelines.

From BBC Apr. 8, 2026

When it comes to deciding the right moment to shift from warming up to working out, ECU Professor of Biomechanics Tony Blazevich notes that there is no universal guideline.

From Science Daily Nov. 27, 2025

“Our guys are swinging and missing it by, like, three feet,” ECU coach Cliff Godwin said.

From The Wall Street Journal Oct. 30, 2025

ECU: The Pirates refused to say who would start at quarterback and they may not know who will take the first snap next week because both struggled.

From Seattle Times Sep. 2, 2023

In November 1992, Sweden broke its tie to the EC's ECU, and   the krona has since depreciated around 2.5% against the dollar.

From The 1993 CIA World Factbook by United States. Central Intelligence Agency

As a holder of two degrees from the University of North Carolina at Chapel Hill and as an assistant professor at E.C.U.,

From Time Magazine Archive

One of their wives is discussing the E.C.U. and the S.S.C. with a hitherto silent curate, and the other is jabbering botany to a red-faced warrior.

From Facts About Champagne and Other Sparkling Wines by Vizetelly, Henry

Eleven years later Dr. Pusey wrote: "As to his being President of the E.C.U., he is the sense and moderation of it."

From Prime Ministers and Some Others A Book of Reminiscences by Russell, George William Erskine

Statement, E.C.U., for "The New Gospel of Interpretation; being an Abstract of the Doctrine and Statement of the Objects of the Esoteric Christian Union," by E.M.; revised and enlarged edition, 1892.

From The Story of Anna Kingsford and Edward Maitland and of the new Gospel of Interpretation by Maitland, Edward

E.C.U., for "The Esoteric Christian Union," founded by E.M. in 1891.

From The Story of Anna Kingsford and Edward Maitland and of the new Gospel of Interpretation by Maitland, Edward

Arnaud had two horses at his mother's farm; he lent one to Gaspard, I borrowed mine for two écus.

From In the Day of Adversity by Bloundelle-Burton, John

It was at an expense of two hundred thousand écus that the welcoming fête was accomplished.

From Royal Palaces and Parks of France by McManus, Blanche

This, one reads in the court chronicle, and further that: "The royal family usually lost a hundred thousand écus at play at each visit."

From Royal Palaces and Parks of France by McManus, Blanche

Fifty écus; that was one hundred and fifty francs!

From Nobody's Boy Sans Famille by Crewe-Jones, Florence

According to her marriage settlement the Queen Henrietta possessed a dowry of eight hundred thousand crowns, equivalent to eight hundred thousand écus de trois livres, French currency.

From The Makers of Canada: Champlain by Dionne, N.-E. (Narcisse-Eutrope)

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