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English definition of “conversion”

conversion

noun (CHANGE)    /kənˈvɜː.ʃən/ /ən/ US  /-ˈvɝː-/
C2 [C or U] the process of converting something from one thing to another: Solar power is the conversion of the sun's energy into heat and electricity .Change and changes C2 [C or U] a process in which someone changes to a new religion or belief : Her conversion to Buddhism / Islam was a very gradual process . He used to be very right-wing , but he's undergone something of a conversion recently .Change and changes [C] a place for living in that has been changed from its previous use: a barn / factory conversionHouses and homes Grammar:Word formationThere are four main kinds of word formation: prefixes, suffixes, conversion and compounds.Grammar:PrefixesWe add prefixes before the base or stem of a word.Grammar:SuffixesWe 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).Grammar:ConversionConversion 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:Grammar:CompoundingWhen 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.Grammar:AbbreviationAbbreviation involves shortening a word. We do this in three main ways: clipping, acronyms and blends.Grammar:Back-formationWe 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 of conversion noun (CHANGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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