exhaust vs run out

exhaust is a noun but run out is not a noun.

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

As verbs, run out is a hyponym of exhaust; that is, run out is a word with a more specific, narrower meaning than exhaust:

exhaust (noun)	run out (noun)
system consisting of the parts of an engine through which burned gases or steam are discharged
gases ejected from an engine as waste products

exhaust (verb)	run out (verb)
wear out completely	use up all one's strength and energy and stop working
eliminate (a substance)	prove insufficient
use up the whole supply of	exhaust the supply of
use up (resources or materials)	become used up; be exhausted
deplete	flow, run or fall out and become lost
	flow off gradually
	leave suddenly and as if in a hurry
	lose validity