Japanese edit

For pronunciation and definitions of しちごさん – see the following entry.
七五三
[proper noun] The Japanese festival for children; a traditional rite of passage and festival day in Japan for three- and seven-year-old girls and three- and five-year-old boys, held annually on November 15. As Shichigosan is not a national holiday, it is generally observed on the nearest weekend. Similar to こどもの日 (Kodomo no Hi, literally Children's Day)
(This term, しちごさん, is the hiragana spelling of the above term.)