sieve

definition: a strainer for separating lumps from powdered material or grading particles
example:
speech part: noun
synonyms: screen
definition: distinguish and separate out
example:
speech part: verb
synonyms: sift
definition: separate by passing through a sieve or other straining device to separate out coarser elements
example:
speech part: verb
synonyms: strain
definition: check and sort carefully
example:
speech part: verb
synonyms: sift
definition: examine in order to test suitability
example:
speech part: verb
synonyms: screen

How sieve is being used?