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

Unsurprisingly, David Sacks, a venture capitalist serving as the White House’s crypto and AI czar, is expected to be at the event. —Dylan Butts, CNBC, 4 Sep. 2025

Adams agreed to work with border czar Tom Homan on the condition that immigrants who had not committed crimes could continue to access city services without fear. —Dan Gooding gabe Whisnant, MSNBC Newsweek, 3 Sep. 2025

The Center Square contacted Seattle Mayor Bruce Harrell’s office on Friday for comment on what the nation’s border czar had to say. —Center Square, The Washington Examiner, 31 Aug. 2025

The group’s position will mostly align with that of White House AI and crypto czar David Sacks, the Wall Street Journal reported. —Marco Quiroz-Gutierrez, Fortune, 26 Aug. 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