OpenTeacher is a vocabulary training application that helps you learn a foreign language. It uses a list of words in both a known and a foreign language and tests you. It supports smart question asking and interval training with Think answers, shuffle answer, and repeat answer input modes. It has easy symbol, Greek, and Cyrillic input, and reads and writes T2K (Teach2000) and WRTS files, and reads ABBYY Lingvo Tutor files. It is available in Arabic, Australian English, Brazilian Portuguese, Chinese (Traditional), Croatian, Czech, Danish, Dutch, French, German, Hebrew, Hungarian, Japanese, Korean, Polish, Russian, Serbian, Slovenian, Spanish, Swedish, and Turkish.
Cjklib provides language routines related to Han characters (characters based on Chinese characters named Hanzi, Kanji, Hanja, and chu Han respectively) used in writing of the Chinese, the Japanese, infrequently the Korean, and formerly the Vietnamese languages. Functionality is included for character pronunciations, radicals, glyph components, stroke decomposition, and variant information.