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chaff
mastery/t͡ʃæf/nounverb
card 1 of 10 · preposition
To separate out the chaff, early cultures tossed baskets of grain into the air and let the wind blow away the lighter chaff _____ the heavier grain.
card 1 of 10 · preposition
To separate out the chaff, early cultures tossed baskets of grain into the air and let the wind blow away the lighter chaff _____ the heavier grain.