Kaiser

noun
  1. A title used for the emperors of the German Empire from 1871 to 1918, derived from the Latin word 'Caesar'. noun
    Kaiser Wilhelm II was the last German emperor and king of Prussia.
    The kaiser played a significant role in the events leading up to World War I.
  2. A person who holds a position of great power or authority, often used metaphorically. noun
    In the corporate world, he was considered the kaiser of the industry.
    She was known as the kaiser of fashion, setting trends that others followed.