As nouns the difference between tsar and osar
is that tsar is (historical) an emperor of russia (before 1917) and of some south slavic kingdoms while osar is an esker.
tsar
Alternative forms
* czar, tzar, csar
Noun
(
en noun)
(historical) An emperor of Russia (before 1917) and of some South Slavic kingdoms.
(figuratively) A person with great power; an autocrat.
(informal, politics, US) An appointed official tasked to regulate or oversee a specific area.
Usage notes
* (emperor of Russia) Officially, emperors after 1721 were styled imperator (); however, the latter is commonly applied to them as well.
Derived terms
* tsardom
* tsarian
* tsarism
* tsarist
Related terms
* csar
* czar
* tsarina
* tsaritsa
* tsarevna
* tsarevich
* tzar
Usage notes
* Although commonly believed to mean specifically a Russian emperor, this is not necessarily the case.
* The spelling (m) is the most common one in the US, especially in the figurative and informal senses. Scholarly literature prefers tsar .
