B2nounacademicphilosophy
US/əˈsʌmp.ʃən/
UK/əˈsʌmp.ʃən/
something you believe is true without proof
In context
The plan was based on the assumption that sales would keep rising.
Don't make assumptions about people because of their accent.
Good researchers are always ready to question their own assumptions.
Words that go with assumption
verb + noun
- make an assumptionWe made an assumption that everyone had read the email.
- question the assumptionThe study questions the assumption that boys are better at science.
noun + preposition
- on the assumption thatWe booked a big room on the assumption that many people would come.
adjective + noun
- basic assumptionThe basic assumption of the theory is that people act rationally.
- underlying assumptionWhat is the underlying assumption behind this argument?
Common mistakes
Incorrect:
I did an assumption.Correct: I made an assumption.