This is the 18369th most frequent Russian word.
экскаватором
"Экскаватором" means "excavator" in English, referring to a construction machine used for digging and moving earth.
The word "экскаватором" is instrumental case, indicating the tool or means used for digging.
Мы копаем яму экскаватором.
We are digging a pit with an excavator.
Here, "экскаватором" implies its role as the assistant tool in the action of leveling the ground.
С помощью экскаватора выровняли землю.
With the help of the excavator, they leveled the ground.
The instrumental case "экскаватором" describes the mechanism by which digging and earth moving are performed.