What does fill in mean?
fill in
Definition
To fill a hole or a trench back in with the earth that was dug out of it.
Example sentences
Once the pipe's in, the excavator will fill in the trench and we'll finally get our street back.
Once the pipe's in, the excavator will fill in the trench and we'll finally get our street back.
It took the backhoe an hour to dig the hole for the septic tank, and then nobody came back to fill it in for three days.