小三 しょうさん Also written 小3 Meanings Noun third year of elementary school; third year elementary school student (abbr. of 小学校3年(生)) Kanji 小 small. Read as ショウ. 三 three. Read as サン. Words containing 小三 小三元 (しょうさんげん) little three dragons Jinuma: Japanese Dictionary · Word lists