prefix /ˈpri:fiks/ I. n. ［c］ 1. 前缀： prefix and suffix 前缀和后缀 “Dis-" is a prefix which means “not". “Dis-" 是一个表示否定的前缀。 2. 人名前用的尊称：“Mr." and “Dr." are prefixes. “Mr." 和“Dr." 是用在人名前的尊称。‖II.  vt. 1. 给… 加前缀：You can prefix “un-" to the word “fair" to make it negative. 可给“fair” 加前缀 “un-” 使之变成有否定意义的词。2. 把… 放在前：prefix a title to one’s name 在姓名前加头衔