Discussion Groups / English Usage / November 2006

Oops. You might want to trade your two-bit dictionary for a decent
one. Here's what MW11 says about "no one":

Main Entry:no one
Function:pronoun
Date:before 12th century

: no person  : NOBODY

and here's what it says about "one 3 [pronoun]":

Main Entry:3 one
Function:pronoun
Date:13th century

1 : a certain indefinitely indicated person or thing  <saw one of
his friends>
2 a : an individual of a vaguely indicated group  : anyone at all  
<one never knows>  b —  used as a third person substitute for a
first person pronoun  <I'd like to read more but one doesn't have
the time>
3 : a single instance of a specified action  <felt like belting him
one — John Casey>
usage Sense 2a is usually a sign of a formal style. A formal style
excludes the participation of the reader or hearer; thus one is
used where a less formal style might address the reader directly  
<for the consequences of such choices, one has only oneself to
thank — Walker Gibson>. This generic one has never been common in
informal use in either British or American English, and people who
start sentences with one often shift to another pronoun more
natural to casual discourse <when one is learning the river, he is
not allowed to do or think about anything else — Mark Twain>. Use
of one to replace a first-person pronoun<sense 2b>has occasionally
been criticized. It is more common in British English than in
American  <I'm watching this pretty carefully and I hope that the
issue will come up in the Lords and one may be able to speak about
it — Donald Coggan>.

But, you seem to be the expert on this, so why don't you tell us
what "no one" is if it isn't a pronoun.

I see that dontbother has already shown you the error of your ways.  Nice
try, though.

One is somewhat confused by your allegation that "one" is not a pronoun.