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.
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
