run out vs conk out

run out and conk out both are verbs.

Word	Noun	Adjective	Verb	Adverb
run out	No	No	Yes	No
conk out	No	No	Yes	No

As verbs, run out and conk out are synonyms defined as:

run out and conk out: use up all one's strength and energy and stop working

Other synonyms of run out include peter out, poop out, run down.

run out (verb)	conk out (verb)
use up all one's strength and energy and stop working	use up all one's strength and energy and stop working
prove insufficient	stop operating or functioning
exhaust the supply of
become used up; be exhausted
flow, run or fall out and become lost
flow off gradually
leave suddenly and as if in a hurry
lose validity