conk out vs go down

conk out and go down both are verbs.

Word	Noun	Adjective	Verb	Adverb
conk out	No	No	Yes	No
go down	No	No	Yes	No

As verbs, go down is a hyponym of conk out; that is, go down is a word with a more specific, narrower meaning than conk out:

Other hyponyms of conk out include crash, blow, blow out, burn out, misfire, malfunction, misfunction.

conk out (verb)	go down (verb)
use up all one's strength and energy and stop working	grow smaller
stop operating or functioning	stop operating
	be defeated
	be ingested
	go under
	disappear beyond the horizon
	move downward and lower, but not necessarily all the way
	be recorded or remembered