/səbˌsɪd.iˈɛr.ɪ.ti/ – noun
Definition: Nguyên tắc pháp lý về việc quyết định và thực hiện các vấn đề ở cấp độ thấp nhất có thể.
A more thorough explanation: in politics, the principle that a tasks which a subordinate (=lower in rank) or local organization can perform efficiently should be performed at that level and not by a central or national organization
Example: This follows the Lerwick Declaration made in Shetland last July, affirming the Scottish government’s commitment to the principles of local decision-making and subsidiarity.