Thread:Project:Support desk/legal issues using Wiktionary Database

Hello Everyone, I'm new to Media Wiki, and trying to develop a software and I like to integrate a dictionary within the software. Now my question is, if I use Wiktionary Database, then should I licence the software under CC-BY-SA-3.0? If no, then what if I change some entries in Database, should then my own Database be open to everyone? I have search a lot on this on Google but I can't get really sure how far it is possible and legal to use the contents on Wiktionary on a commercial software. Thank you so much