Before the award ceremony, he told reporters that he hopes the Medal of Freedom award will help spread the word about the micro-loan concept.

VOA: standard.2009.08.12

The word "property" is really important to connect the concept of property with something fundamental in the make-up, in the constitution.

特性这个词真的很重要,将特性的概念和,组成和构造里主要的部分联系起来。

麻省理工公开课 - 固态化学导论课程节选

So if I take away the quotation marks, all I have is the word with no indication that it's a concept.

所以如果我拿掉引号，剩下的就只是这个词而不指示一个概念了。

耶鲁公开课 - 文学理论导论课程节选

That old-fashioned concept it's an old-fashioned word.

那是旧观念了,词也是过时的

耶鲁公开课 - 美国内战与重建课程节选