QUOTE(bourdon16 @ Oct 19 2009, 09:18 PM)

Here's an example I just did in Finale.

I don't have my book on engraving rules handy, but I think it's normal to use the hyphen (-) when splitting syllables of words in order to indicate that the word is not yet finished, and the underscore (_) to show that the last syllable of the word is stretched over the following notes.
In both cases, it has the same effect - that syllable is held throughout the notes indicated (normally it is the vowel that is held, but some composers ask for just the m or n sounds to be held).
Mosschops