jubilee
noun
[ ˈdʒuːbɪliː ]
• a special anniversary of an event, especially one celebrating twenty-five or fifty years of a reign or activity.
• "to celebrate its jubilee, the club is holding a tournament"
Similar:
anniversary,
commemoration,
celebration,
festival,
gala,
carnival,
jamboree,
feast day,
holiday,
festivities,
revelry,
• a year of emancipation and restoration, kept every fifty years.
• a period of remission from the penal consequences of sin, granted by the Roman Catholic Church under certain conditions for a year, usually at intervals of twenty-five years.
Origin:
late Middle English: from Old French jubile, from late Latin jubilaeus (annus) ‘(year) of jubilee’, based on Hebrew yōḇēl, originally ‘ram's-horn trumpet’, with which the jubilee year was proclaimed.