Different usage of wordfilter possible?

Hi,
I would like wordfilter to not change a word from x to y, but to use the wordfilter (may be in relation to an other module), to use to fill pages on which variables are set, and then I need to have more instances of this page with the words on it.

So for example.

this faculty is about [tag]

and then the [tag] can be changed to different words (may be related to the url), and than regarding the url, the node holds different text.

Is this possible please?
Thanks for going into this!
greetings,
Martijn