run out vs flow

run out is not a noun while flow is a noun.

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

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

Other hypernyms of run out include course, feed, run.

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

Other hypernyms of run out include course, feed, run.

run out (noun)	flow (noun)
	the act of flowing or streaming; continuous progression
	the motion characteristic of fluids (liquids or gases)
	dominant course (suggestive of running water) of successive events or ideas
	any uninterrupted stream or discharge
	the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
	something that resembles a flowing stream in moving continuously
	the amount of fluid that flows in a given time

run out (verb)	flow (verb)
use up all one's strength and energy and stop working	undergo menstruation
prove insufficient	cover or swamp with water
exhaust the supply of	fall or flow in a certain way
become used up; be exhausted	move along, of liquids
flow, run or fall out and become lost	move or progress freely as if in a stream
flow off gradually	cause to flow
leave suddenly and as if in a hurry	be abundantly present
lose validity