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prefix

noun
/ˈpriːfɪks/
/ˈpriːfɪks/
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  1. (grammar语法) a letter or group of letters added to the beginning of a word to change its meaning, such as un- in unhappy and pre- in preheat前缀(缀于单词前以改变其意义的字母或字母组合)
    • negative prefixes such as ‘un-’ and ‘dis-’否定前缀,如“un-”和“dis-”
    compare affix, suffixTopics Languageb1
  2. a word, letter or number that is put before another前置代号(置于前面的单词或字母、数字)
    • Car insurance policies have the prefix MC (for motor car).汽车保险单标有 MC 代号(表示汽车)。
  3. (old-fashioned) a title such as Dr or Mrs used before a person’s name(人名前的)称谓Topics Family and relationshipsc2
  4. Word Originmid 16th cent. (as a verb): from Old French prefixer, from Latin praefixus ‘fixed in front’, from the verb praefigere, from prae ‘before’ + figere ‘to fix’. The noun is from modern Latin praefixum, neuter (used as a noun) of praefixus, and dates from the mid 17th cent.

prefix

verb
/ˈpriːfɪks/
/ˈpriːfɪks/
Verb Forms
present simple I / you / we / they prefix
/ˈpriːfɪks/
/ˈpriːfɪks/
he / she / it prefixes
/ˈpriːfɪksɪz/
/ˈpriːfɪksɪz/
past simple prefixed
/ˈpriːfɪkst/
/ˈpriːfɪkst/
past participle prefixed
/ˈpriːfɪkst/
/ˈpriːfɪkst/
-ing form prefixing
/ˈpriːfɪksɪŋ/
/ˈpriːfɪksɪŋ/
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  1. to add letters or numbers to the beginning of a word or number在…前面加(字母或数字)
    • prefix A to B American members have the letters US prefixed to their code numbers.美国会员的代码前加了字母 US。
    • prefix B with A Their code numbers are prefixed with US.他们的代码前加上了字母 US。
    Word Originmid 16th cent. (as a verb): from Old French prefixer, from Latin praefixus ‘fixed in front’, from the verb praefigere, from prae ‘before’ + figere ‘to fix’. The noun is from modern Latin praefixum, neuter (used as a noun) of praefixus, and dates from the mid 17th cent.

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