definition of
dust

[1] #1 dust n. fine powdery material such as dry earth or pollen that can be blown about in the air; "the furniture was covered with dust". wn

[2] #2 dust n. [debris, junk, rubble, detritus] the remains of something that has been destroyed or broken up. wn

[3] #3 dust v. remove the dust from; "dust the cabinets". wn

[4] #4 dust v. 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". wn

[5] #5 dust n. free microscopic particles of solid material; "astronomers say that the empty space between planets actually contains measurable amounts of dust". wn