sieve

nouns

a strainer for separating lumps from powdered material or grading particles

screen, sieve

is derived from

examine in order to test suitability

"screen these samples"; "screen the job applicants"

screen, screen out, sieve, sort

check and sort carefully

"sift the information"

sieve, sift

separate by passing through a sieve or other straining device to separate out coarser elements

"sift the flour"

sieve, sift, strain