illusion:[ i'lu:n, i'lju:- ] n. 幻覺,錯覺,錯誤的信仰(或觀念) [ 形容詞illusional ] 例句與用法1.He cherished the illusion that she loved him, but he was wrong. 他抱有她愛他的幻覺，但他錯了。

2.I was under the illusion that he was honest until he was caught stealing some money. 他偷錢當場被人抓住，在此之前我一直誤以為他是個老實人。 3.I thought I saw a ghost but it was just an optical illusion. 我以為我看見鬼了, 其實只是一種幻覺. 4.A mirage is an optical illusion. 海市蜃樓是一種視錯覺.