天長節 てんちょうせつ Meanings Noun Emperor's Birthday (national holiday held from 1868 to 1948) See also: 天皇誕生日 (てんのうたんじょうび). Kanji 天 heaven. Read as テン. 長 long. Read as チョウ. 節 section. Read as セツ. Jinuma: Japanese Dictionary · Word lists