What is "god" in Chinese?
It depends on your context. It could be 神 (deity), 老天爷 (Boss of Heaven), 上帝 (God), 主 (The Lord, used by Christians; other people just use 上帝). 真主(God of Islam), 佛祖(God of Buddhism, Sakyamuni specifically), 太上老君(Boss of Taoism)

Other neutral words
仙, 神仙