Taiwan is a place.
A one-party state , single-party state , one-party system , single-party system or one-party democracy is a type of state in which one political party has the right to form the government , usually based on the existing constitution . Taiwan ( [ taɪˈwɑːn ] ) , officially the Republic of China ( ROC ) , is a state in East Asia . Although the ROC continued to claim to be the legitimate government of China , its effective jurisdiction since 1949 has been limited to Taiwan and its surrounding islands , with the main island making up 99 % of its de facto territory .