The Chamaeleon Noun

I wrote and submitted a short, tentative piece for Philosophical Investigations (sister publication of The Philosopher) this evening, which goes by the above title. As the peer review is public, one may view the essay in all its incompleteness on the Internet. It proposes that the noun is an anaphora of sorts. Since anaphoras are "free variables", this rejects the view that the noun is a fixed form with a fixed meaning (à la The Oxford Concise Dictionary of Linguistics). OBSERVATION: I noted that this piece could do with a challenge (which I think it should withstand).

NOTE: There has been a high interest in this post, so here is the link: The Chamaeleon Noun.