Wiktionary
vaisakhi
alt. The Sikh new year festival. n. The Sikh new year festival.
Wikipedia
Vaisakhi
Vaisakhi (, ), also known as Baisakhi, Vaishakhi, or Vasakhi refers to the harvest festival of the Punjab region, the Punjabi new year falling on the first day of Vaisakh which is the first solar month of the Punjabi calendar, Khalsa Sirjana Divas which marks the birth of the Khalsa in the year 1699 and the Mesha Sankranti festival. It is celebrated on either 13 or 14 April.