A. Fuse
B. Sift
C. Espouse
D. Gather
The word “winnow” means to remove the bad or less desirable parts from a group or mixture, often by using a process of separation. In agriculture, it specifically refers to separating grain from chaff using the wind or a current of air.
Sift: This means to separate or sort out, often by passing through a sieve or similar process. It is very similar to winnowing, as both involve separating desired elements from undesired ones.