dictator
/dɪkˈteɪtə(r)/noun
1
- a ruler with total power over a country, typically one who has obtained power by force（尤指以武力夺取权力的）独裁者, 专政者。
1.1
- a person who tells people what to do in an autocratic way or who determines behaviour in a particular sphere发号施令的人; （在特定领域内）支配的人：
I'd ban coincidences, if I were a dictator of fiction.
如果我来决定小说怎么写, 我就不会让巧合出现。
1.2
- (in ancient Rome) a chief magistrate with absolute power, appointed in an emergency（古罗马）（在紧急情况下任命的有绝对权力的）独裁官。
2
- a machine that records words spoken into it, used for personal or administrative purposes（用于私人或行政的）口录机, 录音机。
词源
late Middle English: from Latin， from dictat- 'dictated'， from the verb dictare （see DICTATE）.