snow has 13 distinct synonyms spread across 4 of its 6 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
precipitation falling from clouds in the form of ice crystals
English writer of novels about moral dilemmas in academe (1905-1980)
fall as snow
“It was snowing all night”
conceal one's true motives from especially by elaborately feigning good intentions so as to gain an end
“He bamboozled his professors into thinking that he knew the subject well”
Synonyms, antonyms and the broader and narrower relations for snow come from Princeton University’s WordNet. Full sources and licences.