鐵證 Save Sign in to save words Simplified: 铁证 tiězhèng ㄊㄧㄝˇ ㄓㄥˋ ironclad evidence conclusive proof Character by character 鐵(tiě)iron 證(zhèng)certificate A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0