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Dust (Noun)

Free microscopic particles of solid material; "astronomers say that the empty space between planets actually contains measurable amounts of dust".

Nouns denoting substances.

The astronauts had to navigate through a massive cloud of cosmic dust in order to reach the distant planet.
Astronomers have discovered that the vast emptiness of interstellar space is filled with tiny particles of dust.
The universe is made up of various elements, including dust that is formed from the remains of dead stars.
Scientists have found that the dust in the Earth's atmosphere can affect the planet's climate and weather patterns.
The space telescope was able to capture images of the dust surrounding a newly formed star in a distant galaxy.

The remains of something that has been destroyed or broken up.

Nouns denoting substances.

The city was left in dust after the devastating earthquake that struck the previous night.
The ancient civilization was reduced to dust centuries ago, leaving behind only remnants of a once-great empire.
Years of war had turned the once-thriving town into dust, leaving its people homeless and hopeless.
The meteor that had impacted the planet millions of years ago had left behind a massive crater filled with dust.
The old, abandoned factory stood as a reminder of the industry that had been left to turn to dust.

Fine powdery material such as dry earth or pollen that can be blown about in the air; "the furniture was covered with dust".

Nouns denoting substances.

The house had been vacant for months, and a thick layer of dust coated every surface.
The old attic was filled with dust, making it hard to breathe when she opened the trunk.
A cloud of dust rose into the air as the truck sped down the dirt road.
After not cleaning for weeks, dust accumulated on her shelves and decorative items.
When the door opened, a swirl of dust danced in the faint beam of sunlight.