assumption

noun
B2+
OPAL
OPAL
1
B2+
a belief or feeling that something is true or that something will happen, although there is no proof
فرض, پنداشت, گمان
2
C1+
the act of taking or beginning to have power or responsibility
تقبل مسئولیت, پذیرفتن مسئولیت, به‌عهده‌گرفتن
their assumption of power/control
the assumption of responsibility by the government for the disaster