presupposition
🇺🇸
/ˌpriːsʌpəˈzɪʃn/
🇬🇧
/ˌpriːsʌpəˈzɪʃn/
A belief or idea that you think is true without having proof, which is used as a starting point for further discussion or argument.
His argument had a basic presupposition that all planets have circular orbits.
他的論點基於一個基本的假設,即所有行星的軌道都是圓形的。