1 variant: 夜 yè

1 midnight

2 in the middle of the night

1 nightclub

1 nighttime

2 evening or night (e.g. classes)

1 New Year's Eve family dinner

1 lit. when a man achieves the Dao, his poultry and dogs rise to Heaven (idiom)

2 fig. to ride on sb else's success

3 Once one man gets a government position, all his cronies get in too

4 Once sb has cracked the problem, every Tom, Dick and Harry can do it

1 lit. to make night as day (idiom); fig. to burn the midnight oil

2 work especially hard

1 to make day as night (idiom, from Book of Songs); fig. to prolong one's pleasure regardless of the hour

1 stray dog (idiom)

1 sprawled out on one's back (idiom)