Senses
天柱 pillars supporting heaven
(literary) the pillars that according to mythology support the sky; often used figuratively to refer to someone who is a pillar of the state
天柱 [star name]
(literary) an ancient name for certain stars, such as those in the 角宿 or 三台 constellations
天柱 Tianzhu County
Tianzhu county in Qiandongnan Miao and Dong Autonomous Prefecture, Guizhou
天柱 Tianzhu Mountain
Mt. Tianzhu (Tianzhu Shan) in Anhui Province, one of the famous mountains of China