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Noun: tsar  zaa(r)
  1. A male monarch or emperor (especially of Russia prior to 1917)
    - czar, tzar
  2. An official given powers to regulate or oversee a specific policy area
    "the Prime Minister appointed a new drug tsar";
    - czar, tzar

Derived forms: tsars

Type of: crowned head, monarch, sovereign

Encyclopedia: Tsar