Definition of: dust

(dust) noun
1. Any substance, as earth, reduced to powder.
2. A cloud of pulverized earth; hence, figuratively, a bewildering cloud of words, arguments, etc.; confusion; controversy.
3. Gold dust.
4. A dead body; remains.
5. The earth; the grave; figuratively, downfall or humiliation.
6. Brit. Rubbish; anything worthless; ashes and household sweepings. See synonyms under BODY.
—to bite the dust To fall wounded or dead.
—to make the dust fly
1. To act or go with energy and speed.
2. To create a fuss.
—to throw dust in one's eyes To deceive; mislead.
—v.t.
1. To wipe or brush dust from.
2. To sprinkle with powder, etc.
3. To soil with dust.
—v.i.
4. To wipe or brush dust from furniture, etc.
5. Slang To hurry away: often with off or out. See synonyms under CLEANSE. [OE dūst]
—dust′·less adjective