夜行 | yè xíng | night walk / night departure / nocturnal | |
昼伏夜出 | zhòu fú yè chū | nocturnal / to hide by day and come out at night | |
夜行性 | yè xíng xìng | nocturnal | |
遗精 | yí jīng | nocturnal emission / wet dream | |
梦遗 | mèng yí | wet dream / nocturnal emission (ejaculation) | |
夜鸟 | yè niǎo | nocturnal bird |