supreme ruler; autocrat; high king
Refers to a ruler with absolute power, often in historical or epic contexts. Conveys a sense of dominance and unchallenged authority.
He is known as the supreme ruler of the Warring States period.
In that story, the high king ruled over the entire land.
cactus
Tyrannosaurus rex
Composed of 覇 (supremacy, domination) and 王 (king). The exact historical derivation is uncertain, but the compound conveys the idea of a king who rules by force or supreme authority.