emperor/'empərər $ -rər/

n. a male ruler of an empire

n. [C] 皇帝：a Roman emperor 罗马皇帝

◇[the Emperor + 姓] the Emperor Napoleon 拿破仑皇帝

构词源自imperative（命令的；祈使的）→“下命令的人”引申为“皇帝”

音组-ror/-rər $ -rər/

emperor; error; mirror; terror