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Ivan IV

noun
  1. Ivan the Terrible, 1530–84, first czar of Russia 1547–84.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for ivan iv

Ivan IV

noun
  1. known as Ivan the Terrible. 1530–84, grand duke of Muscovy (1533–47) and first tsar of Russia (1547–84). He conquered Kazan (1552), Astrakhan (1556), and Siberia (1581), but was defeated by Poland in the Livonian War (1558–82) after which his rule became increasingly oppressive
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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