Exemplifier is a relatively uncommon word. However, there are several synonyms that can be used interchangeably, such as demonstrator, representor, illustrate, symbolize, and instantiate. Each of these terms refers to something that serves as an example or model. For instance, an illustrate is a picture or other visual aid that shows what something looks like. A symbolize is a sign or symbol that represents something else. Likewise, an instantiate is a particular instance of a general concept. All of these words can be used to convey the same meaning as exemplifier in different contexts. They are useful alternatives to keep in mind when writing or speaking.