非空 Save Sign in to save words fēikōng ㄈㄟ ㄎㄨㄥ (of a set) non-empty (computing) (of a data structure) non-empty math. Character by character 非(fēi)not be 空(kōng)empty A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0