It has the function, in other words, of negating its own meaning in another semiotic system, in this case the semiotic system of the stoplight.

也就是说，他有这样那样的功能，在不同语义系统中表示的甚至完全相反，就像红灯表示的这些不同含义一样。

耶鲁公开课 - 文学理论导论课程节选

If you look at number of organizations that do this business, it comes completely reversed and it's credit unions that are the most important.

从这些金融机构的数量上来看,排行完全相反,信用合作社就成了最重要的

耶鲁公开课 - 金融市场课程节选