Nantoka/天癸tiān guǐ天癸 (tiān guǐ) is a Chinese word meaning “(TCM) menstruation; period”.Meanings1(TCM) menstruation2periodCharacters in 天癸天tiān · day癸guǐ · tenth of the ten Heavenly Stems 十天干[shi2 tian1 gan1]Related words天day今天today明天tomorrow昨天yesterday每天every day那天that day老天God天使angel天堂paradise天气weather聊天to chat; to gossip天赋giftStudy Chinese with flashcards →