Dust  —n. 1 finely powdered earth or other material etc. (pollen dust). 2 dead person's remains. 3 confusion, turmoil. —v. 1 wipe the dust from (furniture etc.). 2 a sprinkle with powder, sugar, etc. B sprinkle (sugar, powder, etc.).  dust down 1 dust the clothes of. 2 colloq. Reprimand. 3 = dust off. Dust off 1 remove the dust from. 2 use again after a long period. When the dust settles when things quieten down. [old english]