reunion

 
Pronunciation: /riːˈjuːnjən, -ɪən/

noun

  • an instance of two or more people coming together again after a period of separation: she had a tearful reunion with her parents
  • a social gathering attended by members of a group of people who have not seen each other for some time: a school reunion
  • [mass noun] the action of being brought together again as a unified whole: the reunion of East and West Germany

Origin:

early 17th century: from French réunion or Anglo-Latin reunio(n-), from Latin reunire 'unite'