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单词 prefix
释义
prefix
noun[C]
uk
/ˈpriː.fɪks/us
/ˈpriː.fɪks/

prefixnoun[C](GRAMMAR)

B2language
aletterorgroupoflettersaddedto thebeginningof a word to make a new word:
前缀
In the word "unimportant", "un-" is a prefix.在单词 unimportant 中，un- 是前缀。
See also
affixnoun
More examples
  • 'un' is one of the mostcommonprefixes inEnglish.
  • Asuffixisaddedat the end of a word, and a prefix isaddedto thebeginning.
  • Prefixes can be used tocreatenew words inEnglish.
  • 'Eco-' is a prefix used tomean'relatingto theenvironment'.
  • The prefixes 'in-', 'im-', 'il-' and 'ir-' allmean'not'.
SMART Vocabulary: related words and phrases
Linguistics: morphology & parts of words
  • -athon
  • -ative
  • affix
  • agglutinate
  • agglutinative
  • analytic
  • combining form
  • contraction
  • ion
  • ism
  • libfix
  • monomorphemic
  • morphological
  • morphology
  • suffix
  • there'd
  • there's
  • trigraph
  • trisyllabic
  • trisyllable
See more results »

prefixnoun[C](PHONE)

internet & telecomsUK
adialling codeUK
（电话）区号
SMART Vocabulary: related words and phrases
Communications - by telephone
  • 3G
  • 4G
  • 5G
  • aeroplane mode
  • airplane mode
  • area code
  • autodial
  • dialling tone
  • Directory Enquiries
  • helpline
  • phone mast
  • pick
  • picksomeone/somethingup
  • pocket dial
  • prank caller
  • ring
  • roam
  • telecoms
  • telephone
  • transfer
See more results »

Grammar

Prefixes
Prefixes are letters which we add to the beginning of a word to make a new word with a different meaning. Prefixes can, for example, create a new word opposite in meaning to the word the prefix is attached to. They can also make a word negative or express relations of time, place or manner. Here are some examples:…
Word formation
There are four main kinds of word formation: prefixes, suffixes, conversion and compounds.…
Prefixes
We add prefixes before the base or stem of a word.…
Suffixes
We add suffixes after the base or stem of a word. The main purpose of a suffix is to show what class of word it is (e.g. noun or adjective).…
Conversion
Conversion involves the change of a word from one word class to another. For example, the verbs to email and to microwave are formed from the nouns email and microwave:…
Compounding
When we use compounding, we link together two or more bases to create a new word. Normally, the first item identifies a key feature of the second word. For example, the two bases back and ache can combine to form the compound noun backache, and the two bases post and card combine to form the compound noun postcard.…
Abbreviation
Abbreviation involves shortening a word. We do this in three main ways: clipping, acronyms and blends.…
Back-formation
We form words with back-formation when we remove part of a word, usually something which we think is a suffix (or occasionally a prefix). We do this commonly when we form verbs from nouns.…
(Definition ofprefixfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

prefix| American Dictionary

prefix
noun[C]
us
/ˈpri·fɪks/
grammar
aletterorgroupoflettersaddedto thebeginningof a word tochangethemeaningor make a new word:
In the words "unknown" and "unusual," "un-" is a prefixmeaning"not."
(Definition ofprefixfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofprefix

prefix
The efficiency of the first type of code, based on encoding byprefix, can easily be measured.
From theCambridge English Corpus
We also show that without the atomic prefixing only two-way synchronisation is possible, and is between exactly one output and one input operation.
From theCambridge English Corpus
Aside from being prefixed by a possessive pronoun, its members undergo no changes when possessed.
From theCambridge English Corpus
This generalisation extends to the treatment of prefixes and prepositions.
From theCambridge English Corpus
That individual affixes must somehow be identified as prefixes or suffixes on a language-particular basis comes as no surprise.
From theCambridge English Corpus
There is still, however, the question of entry efficiency in this general method, and theprefixis used as the substring in most such proposals.
From theCambridge English Corpus
The parsers for infix andprefixoperators embody the grammar transformations required to remove left-recursion.
From theCambridge English Corpus
Moreover, items with unproductive prefixes gravitate more strongly towards left-branching than items with productive prefixes.
From theCambridge English Corpus
Each method provides a toolkit for constructing parsers for expressions involving at least infix binary andprefixunary operators.
From theCambridge English Corpus
These suffixes are also used alone and with prefixes in other morphological constructions.
From theCambridge English Corpus
A reasonable interpretation of an indicative conditional prefixed by a ' % ' is as stating an entailment.
From theCambridge English Corpus
This argument concerns derivational morphology, which is sometimes realised as aprefixor suffix.
From theCambridge English Corpus
Note, though, that these verbs can take the nasalprefixwhen the applicative/causative suffix -ke is present.
From theCambridge English Corpus
There are almost three times as many words with productive prefixes as with unproductive ones.
From theCambridge English Corpus
A comparison of the frequency of the words with productive and those with unproductive prefixes reveals a clear difference.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/prefix##
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更新时间：2024/12/28 1:43:37