katakanaEnglishOxford New American Dictionarykatakana /ˌkädəˈkänə, ˌkɑdəˈkɑnə / ▸ noun the more angular form of kana (syllabic writing) used in Japanese, primarily used for words of foreign origin. Compare with hiragana. – ORIGIN early 18th century: Japanese, literally ‘side kana’.