fraternization
  結有深交,友善
  Fra·ter·ni·za·tion n. The act of fraternizing or uniting as brothers.
     I hope that no French fraternization . . . could so change the hearts of Englishmen.   --Burke.
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  fraternization
       n : associating with others in a brotherly or friendly way;
           especially with an enemy [syn: fraternisation]