presumption
/prɪˈzʌmpʃən/
noun
plural
presumptions
plural
presumptions
Britannica Dictionary definition of PRESUMPTION
1
[count]
:
a belief that something is true even though it has not been proved
—
often + that
-
The presumption is that the thief had a key to the store.
-
There was a widespread presumption that she would appoint him as her successor.
-
the presumption that all students learn in the same way
-
Thousands of people used this drug on the presumption that it was safe. [=they used it because they believed that it was safe]
2
law
:
an act of accepting that something is true until it is proved not true
—
often + of
[noncount]
[singular]
3
[noncount]
formal
:
willingness to do something without the right or permission to do it