| 释义 | 
		 noun |  verb prefixprefix1 /ˈpriˌfɪks/ noun [countable] ETYMOLOGYprefix1Origin: 1600-1700 Modern Latin praefixum, from  Latin praefigere to fasten before   1eng. lang. arts a group of letters that is added to the beginning of a word to change its meaning and make a new word, such as “un” in “untie” or “mis” in “misunderstand” → see also affix2, suffix2the first group of numbers in a telephone number3a title such as “Ms.” or “Dr.” used before someone’s name [Origin: 1600–1700 Modern Latin praefixum, from  Latin praefigere to fasten before] noun |  verb prefixprefix2 verb [transitive] ETYMOLOGYprefix2Origin: 1400-1500 Old French prefixer, from  fixer  to fix   VERB TABLEprefix |
 | Present | I, you, we, they | prefix |   | he, she, it | prefixes |  | Past | I, you, he, she, it, we, they | prefixed |  | Present perfect | I, you, we, they | have prefixed |   | he, she, it | has prefixed |  | Past perfect | I, you, he, she, it, we, they | had prefixed |  | Future | I, you, he, she, it, we, they | will prefix |  | Future perfect | I, you, he, she, it, we, they | will have prefixed |  
 |
 | Present | I | am prefixing |   | he, she, it | is prefixing |   | you, we, they | are prefixing |  | Past | I, he, she, it | was prefixing |   | you, we, they | were prefixing |  | Present perfect | I, you, we, they | have been prefixing |   | he, she, it | has been prefixing |  | Past perfect | I, you, he, she, it, we, they | had been prefixing |  | Future | I, you, he, she, it, we, they | will be prefixing |  | Future perfect | I, you, he, she, it, we, they | will have been prefixing |  
    1eng. lang. arts to add a prefix to a word, name, or set of numbers2formal to say something before the main part of what you have to say SYN preface |