六歳 ろくさい Also written 六才, 6歳, 6才 Meanings Noun, の-adjective six-year-old; six year old Kanji 六 six. Read as ロク. 歳 age. Read as サイ. Words containing 六歳 六歳臼歯 (ろくさいきゅうし) six-year molar Jinuma: Japanese Dictionary · Word lists