drip vs come down

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

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

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

Other hypernyms of drip include descend, fall, go down.

drip (noun)	come down (noun)
(architecture) a projection from a cornice or sill designed to protect the area below from rainwater (as over a window or doorway)
flowing in drops; the formation and falling of drops of liquid
the sound of a liquid falling drop by drop

drip (verb)	come down (verb)
let or cause to fall in drops	get sick
fall in drops	be the essential element
	criticize or reprimand harshly
	move downward and lower, but not necessarily all the way
	fall from clouds