Definition of Twelfth Day in English:

Twelfth Day

noun

  • archaic term for Twelfth Night
    • ‘On this day in 1508, the Duke of Buckingham gave a feast for 460 guests to celebrate the Twelfth Day of Christmas.’
    • ‘The Assembly Member congratulated District No 5 and Tobermore District No 11 on hosting ‘excellent family orientated Twelfth Day celebrations.’’
    • ‘In Christian history, it is believed that January 6th marks the Twelfth Day of Christmas; twelve days following the birth of Jesus Christ.’