开集 Save Sign in to save words Traditional (Taiwan): 開集 kāijí ㄎㄞ ㄐㄧˊ open set (math.) Character by character 开(kāi)open 集(jí)gather Other words read kāijí kaiji with other tones 开机 开霁 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0