dictator
n
1 ruler who has total power over his country, esp one who has obtained it by force and uses it in a cruel way 独裁者.
2 (fig infml 比喻, 口) person who insists that people do what he wants 霸道的人; 爱发号施令者
Our boss is a bit of a dictator. 我们的老板有点霸道.