(historical) An emperor of Russia (1547 to 1917) and of some South Slavic states. / (figuratively) A person with great power; an autocrat.

plural of tsar

A 50-megaton thermonuclear bomb, detonated by the Soviet Union in October 1961. It was the biggest nuke ever exploded.

If somebody at the top of an abusive hierarchy was aware of the abuses, they might take action to stop them.

(historical) An empress of several Eastern European countries, especially Russia, or the wife of a tsar.

A son of a tsar, a prince in Russia or Bulgaria. / The firstborn son of a tsar / The tsesarevich (crown prince of the Russia Empire)

One who supports a tsar.

expressing support for a tsar / from the time of the tsar in Russia / autocratic

The rank of a tsar; czarship.

Of or resembling a tsar; czarish.