conversion

conversion
【正确答案】：Conversion is the formation of new words by converting words of one class to another class. Conversion is generally considered to be a derivational process whereby an item is adapted or converted to a new word class without the addition of an affix, hence the name zaro-derivation.
【题目解析】：本题考查第四章词汇构词法中转类法conversion的概念。