Definition of "Dust" :

noun: fine powdery material such as dry earth or pollen that can be blown about in the air

"The furniture was covered with dust."

noun: free microscopic particles of solid material

"Astronomers say that the empty space between planets actually contains measurable amounts of dust."

noun: the remains of something that has been destroyed or broken up

verb: remove the dust from

"Dust the cabinets."

verb: rub the dust over a surface so as to blur the outlines of a shape

"The artist dusted the charcoal drawing down to a faint image."

verb: distribute loosely

verb: cover with a light dusting of a substance

"Dust the bread with flour."