Thanks for your suggestions.

I've read up a bit on WordNet and the links you've suggested. However, all this seems a bit over my head considering the scope of this project. I only want a simple word to translation mapper, optionally with some extra information displayed about the suggested words. WordNet in this case means too much extra complexity. There are other people that are better suited to build a Swedish WordNet – linguists, for example – and in fact, there already is a project working towards this end. (On top of that, even though they are developing it, the Swedish WordNet doesn't seem to be released anyhwere, much less using a free license.)

Natural Language Toolkit has essentially the same flaw – too much complexity. It seems more aimed at language researchers than petty programmers looking to build a dictionary.

From what I could see, VisDic was proprietary software and didn't even have any source code around to read. It also seemed to be developed by people with everything but freedom on their mind – the softwares successor was available only after accepting a particularly nasty license. To me, this is a sign I should steer clear.

As for Test::XT, thanks. The boilerplate tests I set up was configured in the suggested way, but it's always nice to automate away these things.