1 to rain

1 variant: 夜 yè

1 nighttime

2 evening or night (e.g. classes)

1 to change or replace

2 to experience

3 one of the five two-hour periods into which the night was formerly divided

4 watch (e.g. of a sentry or guard)

1 to replace the old with new

2 to renew

3 to renovate

4 to upgrade

5 to update

6 to regenerate

1 a sudden shower towards the end of summer brings an abrupt arrival of autumn (idiom)

1 all thunder but no rain (idiom)

2 a lot of noise but no action

1 lit. to stare at the ceiling while writing a book (idiom); to put one's whole body and soul into a book

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