Words which were used to designate one thing but later changed to mean something else have experienced the process of semantic ( ).
【正确答案】：TRANSFER
【题目解析】：本题考查transfer——词义的转移。从定语从句which were used to designate one thing but later changed to mean something else（曾经用来指代一件事，但后来变成了别的意思）可以推断出这里应为transfer——词义的转移。故答案为transfer。
