- 天台山 tiāntāishān Mount TiantaiA mountain in Zhejiang province; it is a famous scenic area and the birthplace of the Tiantai school of Buddhism and the Southern lineage of Daoism
- 天台县 tiāntāixiàn Tiantai CountyTiantai County in [[台州|台州|tai1 zhou1]] prefecture, Zhejiang province
- 司天台 sītiāntái Bureau of AstronomyThe Imperial Observatory or Bureau of Astronomy, an official title used from the Tang dynasty onwards
- 天台宗 tiāntāizōng Tiantai schoolTiantai school of Buddhism; also called the [[法华宗|法華宗|fa3 hua2 zong1]] or the [[止观宗|止觀宗|zhi3 guan1 zong1]].
- 浙江天台县 zhèjiāngtiāntáixiàn Tiantai CountyTiantai County in Zhejiang province
