• synonyms

two-party system

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noun Government.
  1. a political system consisting chiefly of two major parties, more or less equal in strength.
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Origin of two-party system

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for two-party system

two-party system

  1. a condition or system in which two major parties dominate a political unit
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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