drain vs wipe out

drain is a noun but wipe out is not a noun.

Word	Noun	Adjective	Verb	Adverb
drain	Yes	No	Yes	No
wipe out	No	No	Yes	No

As verbs, wipe out is a hypernym of drain; that is, wipe out is a word with a broader meaning than drain:

Other hypernyms of drain include consume, deplete, eat, eat up, exhaust, expend, run through, use, use up.

drain (noun)	wipe out (noun)
emptying something accomplished by allowing liquid to run out of it
a gradual depletion of energy or resources
a pipe through which liquid is carried away
tube inserted into a body cavity (as during surgery) to remove unwanted material

drain (verb)	wipe out (verb)
empty of liquid; drain the liquid from	kill in large numbers
make weak	mark for deletion, rub off, or erase
deplete of resources	remove from memory or existence
flow off gradually	wipe out the effect of something
	use up (resources or materials)
	eliminate completely and without a trace