signified

n.[语]所指；意味

动词signify的过去式和过去分词形式.

In this text, the signified meaning of the signfiers,sounds involves the tragic meaning and become a symbol of the times, and the significance has thus been expanded. 具体到这部文本，这些声音能指符号背后的所指则包含了悲剧意义并成为时代象征，它的意义被扩充了。