In some languages, the definite marker is a word distinct from members of the demonstrative category.  In Lakhota, not only is the definite article unique from demonstratives, but they can occur simultaneously: <i>wic'casa ki he</i> 'man the that' for the English "that man."

<br><br><b>Reference</b><br>
Dryer, Matthew S.. 2008. Definite Articles.
In Haspelmath et al (2008), chapter 37.
Available online at <a href="http://wals.info/feature/37">
http://wals.info/feature/37</a href>.

  