B1
dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces of soil, sand or other substances
Dictionary examples:
The dust in my house is so thick, I can write my name on it! (0.0)
I'm so lazy, my dust bunnies have dust bunnies! (0.0)
I tried to clean the dust, but it just moved to another spot! (0.0)
The furniture was covered in dust. (19.3)
coal dust (35.2)
A cloud of dust rose in the air as the car roared past. (51.7)