Verb > Subside

[no object]

1 : to become less strong or intense

The pain/swelling will subside in a couple of hours.

After his anger had subsided, he was able to look at things rationally.

We’ll have to wait until the wind/storm/rain subsides.

2 : to move down to a lower level

The road will remain closed until the water/flood/river subsides.

a place where the ground has subsided [=sunk, settled]