winnow out

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ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.winnow out - dismiss from consideration or a contest; "John was ruled out as a possible suspect because he had a strong alibi"; "This possibility can be eliminated from our consideration"
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References in periodicals archive ?
They hope to use the technology to winnow out freeze-damaged fruit.
However, the point of exams is partly to ensure everyone reaches an acceptable standard of education and partly to winnow out those who can achieve so much more.
Parents and students use the Internet together and independently to build a short list of schools and winnow out top contenders.