The 12dicts lists are oriented towards common words. Aspell will also do its best to respect the current locale setting. If none of those dictionaries are suitable for your needs a simple web app is available to create a customized.
With the release of gnu aspell 0.60 it is my sincere hope that gnu aspell can replace ispell as the de facto spell checker for all free operating systems and possible all unix. Premade dictionaries are available for hunspell, aspell, and as plain wordlists. For one thing pspell has been merged with aspell so there in no longer two separate.
Aspell has undergone an extremely large number of changes since the previous aspell/pspell release. The best way to get aspell for windows is to use the msys2 binaries. If you have a question about how to use the aspell library. It differs in several important ways from most of the other free word lists you can download.
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