Definitions for: Kaiser

[n] the Holy Roman Emperors or the Emperors of Austria or Germany until 1918

Webster (1913) Definition: 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.

See Also: Emperor, Kaiser Wilhelm, Wilhelm II