something that you believe to be true and use as the beginning of an argument even though it has not been proved; the act of believing it is true假设的事情；假定；预设 synonym assumption- theories based on presupposition and coincidence基于假设和偶合的理论
Extra Examples- Try to clear your mind of any presuppositions.要尽量把你头脑中的预设想法排除掉。
- Your presuppositions are quite wrong.你的预设是完全错误的。
Topics Opinion and argumentc2Word Originmid 16th cent.: from medieval Latin praesuppositio(n-), from the verb praesupponere, from prae ‘before’ + supponere ‘place under’ (from sub- ‘from below’ + ponere ‘to place’).