Antonyms for No (opposite meaning)
WordNet sense 1 (an affirmative):
yes
WordNet sense 2 (quantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class):
all
WordNet sense 3 (quantifier; used with either mass nouns or plural count nouns to indicate an unspecified number or quantity):
some
From the ODE community, based on WordNet
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