◎ 五更 wǔgēng
(1) [the five periods of the night]∶旧时把一夜分为五更,即一更、二更、三更、四更、五更
(2) [before dawn;the fifth watch just before dawn]∶指第五更
夜夜达五更。——《玉台新咏·古诗为焦仲卿妻作》
起五更,睡半夜