Collocations for assumption - noun

basic, fundamental, hidden, implicit, tacit, underlying, unspoken | common, conventional, general, shared, widespread
shared assumptions between teachers and parents

correct, reasonable, valid | erroneous, false, flawed, incorrect, mistaken, questionable, wrong

number, series, set
Your argument is based on a set of questionable assumptions.

make
She''s always making assumptions about how much money people have.

base sth on, start from, work on
We are working on the assumption that the techniques are safe.

accept | challenge, disprove, question, test

underly sth, underpin sth
the assumptions underlying their beliefs

on the ~ that
I set the table for eight people, on the assumption that Jo would come.

~ about
assumptions about how women should behave