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Reich (rīk, rī)
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n.
The territory or government of a German state, as the Holy Roman Empire, or First Reich, from 962 to 1806; the German Empire, or Second Reich, from 1871 to 1919; the Weimar Republic, from 1919 to 1933; or the Third Reich, from 1933 to 1945.

[German, empire, realm, from Middle High German rīch, rīche, from Old High German rīhhi; see reg- in the Appendix of Indo-European roots.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Reich (rīk, rī), Wilhelm 1897-1957.
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Austrian-born American psychoanalyst who theorized that sexual repression is the source of many psychological and social problems.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Reich (rīk), Stephen Michael Known as "Steve." Born 1936.
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American composer noted for his exploration of the interactions of repeating rhythmic patterns.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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