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Nisus Writer supports any mix of Unicode text in your documents. That means you can write in nearly any language ever created. That includes the scripts Latin, Greek, Cyrillic, Armenian, Hebrew, Arabic, Syriac, Devanagari, Thai, Han (Japanese, Chinese, Korean ideographs), Hiragana, Katakana, and more.

For more on working with languages, please see our topic on how to change languages.