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kaiser Syllabification: kai·ser
Pronunciation: /ˈkīzər/

Definition of kaiser in English:


1 historical The German emperor, the emperor of Austria, or the head of the Holy Roman Empire: [as title]: Kaiser Wilhelm
More example sentences
  • The idea of absolute state sovereignty is relatively new, and it derives from agreements among kings, emperors, kaisers, and czars for their mutual benefit.
  • The crowned heads of Europe - kings, emperors, tsars, and kaisers - still entertained each other at regattas, manœuvres, weddings, and funerals.
  • At various times, Roosevelt had the Russian czar, the German kaiser, and the hypersensitive Japanese eating out of his hand, however reluctantly.


Middle English cayser, from Old Norse keisari, based on Latin Caesar (see Caesar), and later reinforced by Middle Dutch keiser. The modern English form (early 19th century) derives from German Kaiser.


the Kaiser's War

dated World War I.



Example sentences
  • Ottocar King of Bohemia had himself expected the Kaisership.
  • The German princely family of Hohenzollern deposed him from the kaisership.

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