brim over vs flow

brim over is not a noun while flow is a noun.

Word	Noun	Adjective	Verb	Adverb
brim over	No	No	Yes	No
flow	Yes	No	Yes	No

brim over (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

brim over (verb)	flow (verb)
flow or run over (a limit or brim)	undergo menstruation
	cover or swamp with water
	fall or flow in a certain way
	move along, of liquids
	move or progress freely as if in a stream
	cause to flow
	be abundantly present