双宿双飞 shuāngsùshuāngfēi to be inseparable Origin Definitions Defs Strokes Stroke Words Sentences Sents 双 雙 shuāng numeraladjective two Two; both; dual; twin; double; twofold宿 sù verbnoun to stay overnight to stay overnight; to lodge; to spend the night双飞 雙飛 shuāngfēi flying in pairs flying side by side in a pair, used to describe the close union and shared success of a married couple