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 not a word or movement (idiom); remaining calm and collected

2 not batting an eyelid

1 all the colors in profusion (idiom); a garish display

1 heavenly beauty, jewel colors (idiom); unusually beautiful lady

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