One who possesses absolute and unrestricted authority.
A ruler with unlimited authority
ruler, king, autocrat
Could be a Tyrant, Dictator, possibly an Autocrat
It means a ruler or leader with complete control of the government.
autocrator αὐτοκράτωρ see also "autocrat" in English Alastair Haines
An autocrat is a ruler who has absolute power and authority over a nation, often making decisions without input from others or a system of checks and balances. Autocrats typically exercise control through oppressive or authoritarian means, limiting the freedom and rights of their citizens.
A ruler who has total power is called an autocrat. Examples of autocrats include dictators, presidents in a one-party system, and absolute monarchs.
It is a suffix coming from the Greek word meaning ruler. Thus an autocrat is someone who rules on his own (auto=self), and a plutocrat is someone who rules by being rich (pluton=wealth). But although an autocrat rules in an autocracy, and a plutocrat rules in a plutocracy, a democrat (demos=crowd) supports or endorses the idea of a democracy, and is not necessarily a ruler in it.
despot, tyrant, dictator, autocrat, totalitarian or republican/democrat (depending on your political flavor)?
The definition of a despot is a ruler who holds absolute power. It is typically a ruler who exercises power in a cruel way. Synonyms for despot include dictator, tyrant, and autocrat.
An absolute ruler, especially a monarch who holds and exercises the powers of the government as by inherit right, not subject to restrictions.
There are a lot of synonyms for the word ruler. Some of these synonyms include leader, lord, dictator, autocrat, governor, and princess.