tōng xiāo通宵the entire night; all through the nightHSK 7+ · Frequency 3.5Meaningsall night; the whole nightExample sentences为了准备考试,他熬了一个通宵。这家网吧通宵营业,吸引了很多年轻人。我们通宵达旦地聊天,一点也不觉得困。