Vaisakha is a Sanskrit word that is commonly used in Hinduism and Buddhism to denote the second lunar month of the Indian calendar. The month of Vaisakha usually falls between April and May and marks the arrival of the spring season in India. It is a month of great significance in the Hindu calendar as it is associated with the celebration of many festivals, including the birth of Lord Buddha, the harvest festival of Baisakhi, and the beginning of the auspicious period of Chaturmas. While there are no direct synonyms for the word "Vaisakha", it can also be referred to as Vaisakh, Baisakh, or Vaishakh.