to sprinkle with a powder or dust: to dust rosebushes with an insecticide.
16.
to strew or sprinkle (a powder, dust, or other fine particles): to dust insecticide on a rosebush.
17.
to soil with dust; make dusty.
–verb (used without object)
18.
to wipe dust from furniture, woodwork, etc.
19.
to become dusty.
20.
to apply dust or powder to a plant, one's body, etc.: to dust with an insecticide in late spring.
—Idioms
21.
bite the dust,
a.
to be killed, esp. in battle; die.
b.
to suffer defeat; be unsuccessful; fail: Another manufacturer has bitten the dust.
22.
dust off,
a.
Baseball. (of a pitcher) to throw the ball purposely at or dangerously close to (the batter).
b.
to take out or prepare for use again, as after a period of inactivity or storage: I'm going to dust off my accounting skills and try to get a job in the finance department.
c.
to beat up badly: The gang of hoodlums dusted off a cop.
23.
leave one in the dust, to overtake and surpass a competitor or one who is less ambitious, qualified, etc.: Don't be so meek, they'll leave you in the dust.
24.
lick the dust,
a.
to be killed; die.
b.
to humble oneself abjectly; grovel: He will resign rather than lick the dust.
25.
make the dust fly, to execute with vigor or speed: We turned them loose on the work, and they made the dust fly.
26.
shake the dust from one's feet, to depart in anger or disdain; leave decisively or in haste, esp. from an unpleasant situation: As the country moved toward totalitarianism, many of the intelligentsia shook the dust from their feet.
27.
throw dust in someone's eyes, to mislead; deceive: He threw dust in our eyes by pretending to be a jeweler and then disappeared with the diamonds.
[duhst] 
