Meaning of “czar” in the English Dictionary

british dictionary

"czar" in British English

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czarnoun [ C ]

uk /zɑːr/ us /zɑːr/

mainly US spelling of tsar

(Definition of “czar” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"czar" in American English

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czarnoun [ C ]

us /zɑr, tsɑr/

world history (before 1917) the Russian ruler

infml A czar is also a person who has a lot of power in a particular activity:

The nation’s anti-corruption czar says much of the cash has disappeared.

(Definition of “czar” from the Cambridge Academic Content Dictionary © Cambridge University Press)