太古代 Save Sign in to save words tàigǔdài ㄊㄞˋ ㄍㄨˇ ㄉㄞˋ Archaeozoic (geological era before 2500m years ago) Character by character 太(tài)too 古(gǔ)surname Gu 代(dài)be a substitute for A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0