Paper money was used to represent a nation's gold and silver holdings.

VOA: special.2010.06.17

In fact, when Facebook first debuted, random aside, ID they used I believe an int to represent your profile IDs.

在Facebook创立之初，我猜他们使用int来表示配置文件。

哈佛公开课 - 计算机科学课程节选

It is about a sign that is used to represent some words.

VOA: special.2009.03.22

Kusugak says that the Inuit symbol used to represent the Vancouver Winter Games serves a special purpose in his culture, illustrating that his people were in the region, where to find food or whether there is fuel for fire.

VOA: standard.2010.02.19

This Russian art was used as a propaganda tool to represent the goals of the socialist state.

VOA: special.2009.04.08