dust

(noun) fine powdery material such as dry earth or pollen that can be blown about in the air. Example: "The furniture was covered with dust."

(noun) the remains of something that has been destroyed or broken up. Synonyms: debris, junk, rubble, detritus.

(noun) free microscopic particles of solid material. Example: "Astronomers say that the empty space between planets actually contains measurable amounts of dust."

(verb) remove the dust from. Example: "Dust the cabinets."

(verb) rub the dust over a surface so as to blur the outlines of a shape. Example: "The artist dusted the charcoal drawing down to a faint image."

(verb) cover with a light dusting of a substance. Example: "Dust the bread with flour."

(verb) distribute loosely. Synonyms: scatter, sprinkle, dot, disperse. Example: "He scattered gun powder under the wagon."