See more synonyms for kaiser on Thesaurus.com
  1. a German emperor.
  2. an Austrian emperor.
  3. History/Historical. a ruler of the Holy Roman Empire.
  4. a person who exercises or tries to exercise absolute authority; autocrat.

Origin of kaiser

1150–1200; < GermanLatin Caesar emperor, special use of proper name (see Caesar); replacing Middle English keisere, (north) caisere < Old Norse keisariLatin as above; compare Old English cāsere
Related formskai·ser·dom, noun


  1. Henry J(ohn),1882–1967, U.S. industrialist.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for kaiser

monarch, emperor, title

Examples from the Web for kaiser

Contemporary Examples of kaiser

Historical Examples of kaiser

British Dictionary definitions for kaiser


noun (sometimes not capital) history
  1. any German emperor, esp Wilhelm II (ruled 1888–1918)
  2. obsolete any Austro-Hungarian emperor
Derived Formskaiserdom or kaiserism, noun

Word Origin for Kaiser

C16: from German, ultimately from Latin Caesar emperor, from the cognomen of Gaius Julius Caesar


  1. Georg (ˈɡeːɔrk). 1878–1945, German expressionist dramatist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for kaiser

"an emperor," Old English casere, fallen from use after Middle English, but revived 1858 in reference to the German emperors of Austria and, after 1870, Germany, from German Kaiser, from Bavarian and Austrian spelling of Middle High German keisar, from Old High German keisar "emperor," an early borrowing of Latin cognomen Caesar. The Germanic and Slavic peoples seem to have called all Roman emperors "caesar" (cf. Old English casere, Old Norse keisari). Said to be the earliest Latin loan word in Germanic.

Online Etymology Dictionary, © 2010 Douglas Harper

kaiser in Culture



The German word for “emperor.” The emperors of Austria and Germany were called Kaisers. (See Wilhelm II.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.