assumptionnounuk us /əˈsʌmp.ʃən/
assumption noun (BELIEF)
- They make the naive assumption that because it's popular it must be good.
- The sales forecast is predicated on the assumption that the economy will grow by four percent this year.
- There's an unspoken assumption in the department that Sue will take over the post when Ian leaves.
- He premised his argument on several incorrect assumptions.
- The assumptions made about the economy's rate of growth proved to be incorrect.