delusion [dɪˈlu:ʒn]

以下由轻松背单词网站提供

n.谬见，欺骗，幻觉，迷惑

when someone believes something that is not true

He is under the delusion that he is Napoleon. 他患了妄想症，认为自己是拿破仑。
I was under the delusion that he intended to marry me. 我误认为他要娶我。