I want to internally add a reference to a wiki-page. For example, say the page name is The_Page_Name. I would like to add a known term (say, The_Reference) to Wikipedia that should redirect to The_Page_Name. They are both synonyms that overlap each other.
I believe what you are looking for is a "Redirect." Information on this can be found here: http://en.wikipedia.org/wiki/Wikipedia:Redirect
To create a basic redirect manually, set
#REDIRECT [[target page name here]]as the only body text of the page. For instance, if you were redirecting from "UK" to "United Kingdom", this would be the entire body of the "UK" page:
#REDIRECT [[United Kingdom]]