Complete the following statements with proper words or expressions according to the course book.The change of the meaning in the word “butcher”, which originally denoted “one who kills goats”，but has come to mean “one who kills animals” reflects ( )in the sense of word-meaning change.
【正确答案】：EXTENSION
【题目解析】：意义的变化“butcher”这个词，最初表示“杀死山羊的人”，但是现在意味着“杀死动物的人”反映了词义变化在意义上的扩大。
