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Cossack

American  
[kos-ak, -uhk] / ˈkɒs æk, -ək /

noun

  • Cossacks
    plural
  1. (especially in czarist Russia) a person belonging to any of certain groups of Slavs living chiefly in the southern part of Russia in Europe and forming an elite corps of horsemen.


Cossack British  
/ ˈkɒsæk /

noun

  1. (formerly) any of the free warrior-peasants of chiefly East Slavonic descent who lived in communes, esp in Ukraine, and served as cavalry under the tsars

"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

adjective

  1. of, relating to, or characteristic of the Cossacks

    a Cossack dance

"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 Cossack

1590–1600; < Polish kozak or Ukrainian kozák, ultimately < a Turkic word taken to mean “adventurer, freebooter,” adopted as an ethnic name by Turkic tribal groups of the Eurasian steppes

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:

Before heading off to the front, Shaman, his army call sign, was manning the stand of the "Berkut Military-Sports Cossack Club" in the shopping centre.

From Barron's Feb. 13, 2026

Then, down the broad marble staircase of Odessa marches a phalanx of Cossack soldiers.

From The Wall Street Journal Dec. 12, 2025

The play dramatizes the story of a Cossack leader in a Ukrainian community almost 400 years ago as he tries to root out witches that local townspeople believe are responsible for a drought.

From New York Times May 27, 2024

But after helping them achieve victory, their Muscovite allies sought to dominate them, leading to another Ukrainian Cossack rebellion in 1708 that soon allied with Sweden.

From Salon Jul. 29, 2023

At a hitch near one of the pens, a Cossack performer tended to his horse.

From "The City Beautiful" by Aden Polydoros

One of Babel’s “Red Cavalry” stories tells of Lyutov, a Jewish intellectual who rode with the Cossacks, as Babel did, trying to prove himself a man on their terms.

From The Wall Street Journal May 22, 2026

His family are Ukrainian Cossacks – a group renowned as warriors and pioneers of independence in Ukraine.

From BBC Sep. 9, 2025

Ukrainians learned that the hard way in the mid-1600s when Ukrainian Cossacks rebelled against their Catholic Polish-Lithuanian Commonwealth rulers and established an independent state, seeking protection from their Orthodox co-religionists in Muscovy.

From Salon Jul. 29, 2023

The models for the Ukrainian Cossacks in one of his most famous paintings, “Reply of the Zaporozhian Cossacks,” were friends and academics from the university in St. Petersburg.

From Washington Post Dec. 8, 2022

Cavalry soldiers, ninety-seven Cheyenne, Kiowa, Pawnee, and Sioux Indians, another fifty Cossacks and Hussars, 180 horses, eighteen buffalo, ten elk, ten mules, and a dozen other animals.

From "The Devil in the White City" by Erik Larson

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