snow vs come down

snow is a noun but come down is not a noun.

Word	Noun	Adjective	Verb	Adverb
snow	Yes	No	Yes	No
come down	No	No	Yes	No

As verbs, come down is a hypernym of snow; that is, come down is a word with a broader meaning than snow:

Other hypernyms of snow include fall, precipitate.

snow (noun)	come down (noun)
street names for cocaine
precipitation falling from clouds in the form of ice crystals
a layer of snowflakes (white crystals of frozen water) covering the ground

snow (verb)	come down (verb)
conceal one's true motives from especially by elaborately feigning good intentions so as to gain an end	get sick
fall as snow	be the essential element
	criticize or reprimand harshly
	move downward and lower, but not necessarily all the way
	fall from clouds