Noun

• S: (n) winnow, winnowing, sifting (the act of separating grain from chaff) "the winnowing was done by women"

Verb

• S: (v) winnow (separate the chaff from grain by using air currents) "She stood there winnowing grain all day in the field"
• S: (v) winnow (blow on) "The wind was winnowing her hair"; "the wind winnowed the grass"
• S: (v) cull out, winnow (select desirable parts from a group or list) "cull out the interesting letters from the poet's correspondence"; "winnow the finalists from the long list of applicants"
• S: (v) winnow, fan (blow away or off with a current of air) "winnow chaff"; "The speaker ceased to be an amusing little gnat to be fanned away and was kicked off the forum"