an emperor of Russia before 1917
any of various Slavic rulers, esp of Serbia during the 14th cent
a tyrant or somebody who keeps strict control, e.g. of their staff
a person with great power or authority, esp somebody with overall responsibility for something
The government has appointed a homelessness tsar
tsardom noun
tsarism noun
tsarist noun and adj
[Russian tsar’, via Gothic kaisar emperor, from Latin Caesar: see Caesar]