十歳 じゅっさい Also written じっさい, 十才, 10歳, 10才 Meanings Noun, の-adjective ten-year-old; ten year old Kanji 十 ten. Read as ジュッ. 歳 age. Read as サイ. Words containing 十歳 二十歳 (はたち) 20 years old Jinuma: Japanese Dictionary · Word lists