czar

noun

ˈzär  ˈ(t)sär 

variants or less commonly tsar or tzar

1

: emperor

specifically : the ruler of Russia until the 1917 revolution

2

: one having great power or authority

a banking czar

czardom noun

or less commonly tsardom or tzardom

ˈzär-dəm 

ˈ(t)sär-

Synonyms

• magnate
• tycoon
• king
• prince
• captain
• baron
• mogul

Examples of czar in a Sentence

a showbiz czar who is said to be able to make or break a career

Recent Examples on the Web

Adams has also worked with border czar Tom Homan on immigration enforcement. —Greg Wehner, FOXNews.com, 27 Aug. 2025

President Trump’s border czar Tom Homan said Friday that the administration is not asking Washington, D.C., police to directly enforce immigration laws, adding that officers must cooperate with federal authorities. —Miriam Waldvogel, The Hill, 15 Aug. 2025

Bad Ems Once a favorite of Kaiser Wilhelm and Russian czars, Bad Ems, a town set on the river Lahn in western Germany, is now a UNESCO World Heritage Site. —Sofia Markovich, Travel + Leisure, 24 July 2025

Trump’s alliance with Silicon Valley began with the support of podcasting venture capitalists, one of whom was later tapped to be Trump’s AI and crypto czar. —Sharon Goldman, Fortune, 23 July 2025

Word History

Etymology

New Latin czar, from Russian tsar', from Old Russian tsĭsarĭ, from Goth kaisar, from Greek or Latin; Greek, from Latin Caesar — more at caesar

First Known Use

1555, in the meaning defined at sense 1

Rhymes for czar

• ar
• are
• bar
• barr
• car
• carr
• char
• charr
• far
• farre
• haar
• har

Kids Definition

czar

noun

variants also tsar or tzar

ˈzär

1

: the ruler of Russia until the 1917 revolution

2

: one having great power or authority

a baseball czar

czardom noun

also tsardom or tzardom

ˈzärd-əm

Etymology

Latin czar "czar," from Russian tsar' (same meaning), from early Russian tsǐsarǐ, tsěsarǐ "emperor," from a Germanic word kaisar "emperor," derived from Latin Caesar (title of a line of Roman emperors after Augustus Caesar) see Word History at emperor