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

Sowell had paid Hall a $50,000 consulting fee as recently as February — right before Hall entered the border czar’s office working under Homan, government disclosure documents show. —Avi Asher-Schapiro, ProPublica, 21 Oct. 2025

That was Trump border czar Tom Homan. —ABC News, 19 Oct. 2025

At a private event at the Indiana Statehouse on October 14, Trump’s border czar, Tom Homan, told state lawmakers and law enforcement officials the administration had carried out nearly 550,000 removals since the Republicans returned to office. —Billal Rahman, MSNBC Newsweek, 17 Oct. 2025

Venture capitalist David Sacks, who is now Trump’s AI and crypto czar, said after the news about Conway that Benioff could join the Republicans. —Ari Levy, CNBC, 17 Oct. 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