1. 1. A political order whose head of state is not a monarch and in modern times is usually a president.
   2. A nation that has such a political order.
2. 1. A political order in which the supreme power lies in a body of citizens who are entitled to vote for officers and representatives responsible to them.
   2. A nation that has such a political order.
3. often Republic A specific republican government of a nation: the Fourth Republic of France.
4. An autonomous or partially autonomous political and territorial unit belonging to a sovereign federation.
5. A group of people working as equals in the same sphere or field: the republic of letters.

[French république, from Old French, from Latin rēspūblica : rēs, thing + pūblica, feminine of pūblicus, of the people; see public.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.