Sichuan Syllabification: (Si·chuan)Pronunciation: /ˈsiCHˈwän, ˈsœCH-/ (also Szechuan or Szechwan /ˈseCH-/)Definition of Sichuan a province in west central China; capital, Chengdu. Sichuan in other Oxford dictionaries Definition of Sichuan in the British & World English dictionary