七五三 しちごさん Meanings Noun shichi-go-san; 7-5-3 day (i.e.: festival day for children aged 7, 5 and 3 held on or around November 15) lucky numbers 7, 5 and 3 Kanji 七 seven. Read as シチ. 五 five 三 three. Read as サン. Jinuma: Japanese Dictionary · Word lists