n. 皇帝

[ noun ]
the title of the Holy Roman Emperors or the emperors of Austria or of Germany until 1918
<noun.person>

Kaiser \Kai"ser\, n. [Gr., fr. L. Caesar. Cf. {Kesar}, and
{Czar}.]
The ancient title of emperors of Germany assumed by King
William of Prussia when crowned sovereign of the new German
empire in 1871.