Save Gender Feminine Usage Thai Scripts วันวิสา(Thai) Pronounced Pron. /wan˧.wi˦˥.ˈsaː˩˩/ [key·simplify] Other Forms FormsWanvisa, Vanvisa, Vanwisa Meaning & History Derived from Thai วันวิสาขบูชา (wanwisakhabucha) referring to Visakha Puja (or Vesak), a Buddhist holiday that celebrates the birth, enlightenment and death of Buddha.