winnow vs fan

winnow and fan both are nouns.

Word	Noun	Adjective	Verb	Adverb
winnow	Yes	No	Yes	No
fan	Yes	No	Yes	No

As verbs, winnow and fan are synonyms defined as:

As verbs, fan is a hypernym of winnow; that is, fan is a word with a broader meaning than winnow:

winnow (noun)	fan (noun)
the act of separating grain from chaff	a device for creating a current of air by movement of a surface or surfaces
	an ardent follower and admirer
	an enthusiastic devotee of sports

winnow (verb)	fan (verb)
blow away or off with a current of air	make (an emotion) fiercer
select desirable parts from a group or list	blow away or off with a current of air
separate the chaff from grain by using air currents	strike out (a batter), (of a pitcher)
blow on	agitate the air