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

https://creativecommons.org/licenses/by-sa/3.0/ has the short information on the licence you mention. As far as I understand the licence (I am not a laywer), you only have to licence your own work with the same licence, if you "contribute" to the base-work you used (e.g. by adding translations, fix typing errors and so on). As I understand you, you would contribute, if you were somehow forced to do so, but in fact you do not want to contribute to the dictionary. In contrast you want to write an own software for whatever purpose, which is not primarily a dictionary. I would then say you can licence your software the way you like, while you licence the dictionary data under CC-BY-SA-3.0.

The CC-BY-SA-3.0 allows you - under certain conditions - to distribute the work as you wish. However, permission is not duty: Just because I am allowed to cross the green traffic light does not mean I actually have to.