brotherhood  
noun [ C, + sing/pl verb ] uk/ˈbrʌð.ə.hʊd/ us/ˈbrʌð.ɚ.hʊd/
  (ORGANIZATION)      
  兄弟会(成员);同志会(成员);同业公会(成员)
(the members of) a particular organization
  The various groups eventually fused into a single brotherhood. 这些不同的组织最后合并成了一个同道会。 
   (FRIENDSHIP)      
 友谊;手足情谊
friendship and loyalty
  The ideal of the brotherhood of man (= where everyone loves each other) is still far from reality. “人人皆兄弟”的理想仍远未实现。