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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  
[ay-kyoo, ay-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  
[ay-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:

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 Amelia Ann Blanford Edwards

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 Ronald Sutherland Gower

In which sport she was so taken up with her hands, that she forgot to cheat, and Denys won "écu au soleil" of her.

From The Cloister and the Hearth A Tale of the Middle Ages by Charles Reade

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

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

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 P. L. Jacob

Aberdeenshire Council - a formal consultee - responded to the ECU with an objection, unless various conditions are met to "secure appropriate environmental controls".

From BBC ● Apr. 11, 2026

The ECU rules on whether BBC output has broken the corporation's editorial guidelines.

From BBC ● Feb. 25, 2026

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

From The Wall Street Journal ● Oct. 30, 2025

According to ECU Senior Research Fellow Dr. Marc Sim, even after adjusting for supplement use, diet, lifestyle factors, and genetic risk, the outcomes did not change.

From Science Daily ● Oct. 18, 2025

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

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 Edward Maitland

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 George William Erskine Russell

It would be ridiculous for an outsider, like myself, to discuss the interior working of the E.C.U., so I avail myself of the testimony which has reached me from within.

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

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 Edward Maitland

The Prince de Condé having been discharged from prison on October 20th, 1619, the king forwarded to him his commission of viceroy, and the Company of Rouen granted him a thousand écus.

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

If I would put down fifty écus, the cow was mine.

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

His merchandise which was seized by Kirke was valued at about forty thousand écus.

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

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

From Royal Palaces and Parks of France by Blanche McManus

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 Blanche McManus

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