noun
supreme council; high council
General term for the highest decision-making body in an organization or government.
党の最高会議で新しい方針が決まった。
The new policy was decided at the party's supreme council.
noun
Supreme Soviet (former USSR)
Historical term specifically for the highest legislative body of the former Soviet Union.
ソ連の最高会議は1991年に解散した。
The Supreme Soviet of the USSR was dissolved in 1991.