Is “Winnow” a Scrabble word?
Yes
WINNOW
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Winnow
/ˈwɪnəʊ/
noun
1.That which winnows or which is used in winnowing; a contrivance for fanning or winnowing grain.
verb
1.To subject (granular material, especially food grain) to a current of air separating heavier and lighter components, as grain from chaff.
2.To separate, sift, analyze, or test by separating items having different values.
“They winnowed the field to twelve.”
3.To blow upon or toss about by blowing; to set in motion as with a fan or wings.