七三 しちさん Meanings Noun seven-to-three ratio; 70-30 split 70-30 hair part; hairstyle with hair parted in a 70-30 ratio Kanji 七 seven. Read as シチ. 三 three. Read as サン. Words containing 七三 七三分け (しちさんわけ) side parting Jinuma: Japanese Dictionary · Word lists