WordNet sense 1 (precipitation falling from clouds in the form of ice crystals):

snowfall

WordNet sense 2 (English writer of novels about moral dilemmas in academe (1905-1980)):

Baron Snow of Leicester, C. P. Snow, Charles Percy Snow

WordNet sense 3 (street names for cocaine):

blow, c, coke, nose candy

WordNet sense 4 (conceal one's true motives from especially by elaborately feigning good intentions so as to gain an end):

bamboozle, hoodwink, lead by the nose, play false, pull the wool over someone's eyes