sieve
US /sɪv/
UK /sɪv/

1.
a utensil consisting of a wire or plastic mesh held in a frame, used for straining solids from liquids, for separating coarser from finer particles, or for reducing soft solids to a pulp
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She used a sieve to drain the pasta.
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The baker sifted the flour through a fine sieve.
2.
a person who cannot keep a secret or remember things
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Don't tell him anything important; he's a real sieve.
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My memory is like a sieve these days.