The concept he calls a "signified" and the sound image he calls a "signifier."

事物被称为所指,声音形象被称为能指“

耶鲁公开课 - 文学理论导论课程节选

I mean a blanket term, a guiding concept, a transcendental signified, something that explains the nature of the structure and something also, as Derrida says, which allows for limited free play within the structure; but at the same time the structure has this kind of boundary nature.

是一个概括性称呼，一个引领概念，一个超验所指，它解释了这个结构的内涵，正如德里达所说，它允许在结构内有限的自由游戏;,但同时这个结构也有限性。

耶鲁公开课 - 文学理论导论课程节选