（）of meaning is a process by which a word that originally had a specialized meaning has now become generalized.
A、Degradation
B、Elevation
C、Extension
D、Specilization
【正确答案】：C
【题目解析】：本题考查语义扩展的定义。词义的扩大指的是一个词的词义从表达某一专门意义转化到表示概括意义的过程。也就是说，词义扩展，开始涵盖了更多的意义，比原有概念的范围更大了。
