Meaning of DUST in English

[verb]I was dusting (= removing dust from) the mantelpiece when I noticed the piece of paper. [T]Would you prefer to dust or wash up? [I]The cake should be dusted (= thinly covered) with icing sugar. [T]After her car had been broken into, it was dusted for fingerprints (= special powder was put on its surfaces so that marks made by fingers could be seen) by the police. [T]To dust off (UK and ANZ also dust down) something is to prepare it for use, esp. after it has not been used for a long time.They brought out the old ambulances, dusted them down and put them back into service.

Cambridge English vocab.      Кембриджский английский словарь.