a club for a group of women students at an American college or university（美国大学里的）女生联谊会CultureMembers often live together in a sorority house. They are called ‘Greeks’, because each sorority's name consists of two or three Greek letters, such as Chi Omega or Kappa Kappa Gamma. They also help charities and do community work. A few student sororities are academic or professional organizations.compare fraternity compare fraternityTopics Educationc2Oxford Collocations DictionarySorority is used before these nouns: See full entry Word Originmid 16th cent.: from medieval Latin sororitas, or from Latin soror ‘sister’ (on the pattern of fraternity).