tatoeba
A library for fetching and reading Tatoeba's weekly exports
jiten - japanese android/cli/web dictionary based on jmdict/kanjidic — 日本語 辞典 和英辞典 漢英字典 和独辞典 和蘭辞典
The Language Learning Toolkit (LLTK) performs a variety of tasks useful for (human) language learning.