WordRel.com

• the practice of one person holding more than one benefice at a time

  derivation	pluralist
  hypernym	patternpractice

• the doctrine that reality consists of several basic substances or elements

  antonym	monism
  derivation	pluralistpluralistic
  hypernym	doctrineismphilosophical systemphilosophyschool of thought

• a social organization in which diversity of racial or religious or ethnic or cultural groups is tolerated

  derivation	pluralistpluralistic
  hypernym	social organisationsocial organizationsocial structuresocial systemstructure