signifier
noun [ C ] uk/ˈsɪɡ.nɪ.faɪ.ər/ us/ˈsɪɡ.nɪ.faɪ.ɚ/
符号，标记，象征
something that represents a quality or idea
The image of Santa Claus is a cultural signifier of Christmas. 圣诞老人的形象是圣诞节的文化象征。
language specialized示意的人（或物），示意动作
a physical sign, for example a word or a sound, that has meaning