/ ˌpriːsəˈpəʊz; NAmE -ˈpoʊz/ verb ( formal )
1.
[ vn ] to accept sth as true or existing and act on that basis, before it has been proved to be true
SYN presume :
Teachers sometimes presuppose a fairly high level of knowledge by the students.
2.
to depend on sth in order to exist or be true
SYN assume :
[ v that ]
His argument presupposes that it does not matter who is in power.
[also vn ]
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WORD ORIGIN
late Middle English : from Old French presupposer , suggested by medieval Latin praesupponere , from prae before + supponere place under (from sub- from below + ponere to place).