Specific Censor

[SFishy]

Okay, I HAVE done a search on this and didn't come up with much. I know all about replacements, and that's what I'm using currently, but it's not a perfect system that way.

Here's an example (it's just an example, I don't really want to censor the word "shut" LOL)

I'd like to have the word "shut" be changed to "shutter"

if I just use "shut" in the replacements, now shutter will come out "shutshutter".

I can add a space at the beginning and end and that fixes it, but now I have to come up with every possible incantation of the word. Shut, shut, shut shut. Shut. SHUT SHUT, SHUT. (you get the idea)

so here's my question...

Is there a hack to censor one specific word, not case sensitive, to another. Something like the censor feature now where it goes inside {} to make it real specific {shut}

OR

Can you think of a better way to handle this?

Thanks!