Islamic Interpretation of Dreams (Ibn-i Sirin):
(Bolter; Colander; Filter; Separate; Sift; Sort; Strainer) In a dream, a sieve represents knowledge, discerning, honor, rank and discriminating between truth and false.
A sieve in a dream is like a detector of true banknotes from counterfeit, a person who chooses his words, a choosy person of the type of work he does, or a discriminating buyer, a pious person, or it could represent a comb.
If a sieve is given as a collateral, or as a promissory note in a dream, it means that the depositor will flunk his promise, for a sieve does not retain water.
(Also see Bolter; Strainer)