Dust (noun)

1. Fine, dry particles of matter that are formed by the grinding, breaking down, or destruction of solid materials.
2. Debris or dirt that has accumulated on a surface.

Origin:

The word "dust" originated from the old english word "dust", which means "earth or soil". it was later used to refer to the dry, powdery substance that is formed by the tiny particles of dirt and debris that are present in the air.

Examples:

1. She swept the dust off the shelves and surfaces in the room.
2. The wind carried the dust from the construction site across the street.
3. He could see a cloud of dust rising behind the car as it drove down the road.
4. The dust made her sneeze and cough repeatedly.
5. The books were covered in a thick layer of dust, indicating they hadn't been touched in a long time.