noun
trusteeship; trust territory administration
Refers to the system under which a territory is administered by a trustee country under the United Nations Trusteeship Council. A technical term in international law and political history.
太平洋諸島の一部は、かつてアメリカの信託統治下にあった。
Some of the Pacific islands were once under U.S. trusteeship.
The trusteeship system was established under the United Nations Charter.