空儿 kòngrkōngr HSK3 spare time Definitions Defs Origin Strokes Stroke Words Sentences Sents kòngr spare time · chance 空 kòng noun free time leisure; free time; a gap in time儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.kòngr empty space 空 kòng adjective vacant unoccupied; blank; unused space; a gap or opening儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.kōngr empty things 空 kōng adjective impractical impractical; theoretical; unreal; fictitious儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.