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The word governor once meant "pilot" but now means "head of a state", which is an example of( )of meaning.
【正确答案】：ELEVATION
【题目解析】：本题考查词义升格的例词。词义的升格指的是原来表示低级意义的词随着时间的推移，转换成褒扬意义的词的过程。比如：governor原义指的是舵手，现在表示总督。elevation of meaning：词义的升格。