n. 
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autumnal equinox, autunezite, Autunian, autunite, Auvergne, Auversian, AUW, AUX, auxanodifferentiation, auxanogram,
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couverture, Couvinian, covalence, covalency, covalent, covalent bond, covar, covariability, covariance, covariant,