overflow vs flow

overflow and flow both are nouns.

Word	Noun	Adjective	Verb	Adverb
overflow	Yes	No	Yes	No
flow	Yes	No	Yes	No

As nouns, flow is a hypernym of overflow; that is, flow is a word with a broader meaning than overflow:

Other hypernyms of overflow include stream.

As nouns, flow is a hypernym of overflow; that is, flow is a word with a broader meaning than overflow:

overflow: the occurrence of surplus liquid (as water) exceeding the limit or capacity
flow: the motion characteristic of fluids (liquids or gases)

Other hypernyms of overflow include flowing.

overflow (noun)	flow (noun)
a large flow	the act of flowing or streaming; continuous progression
the occurrence of surplus liquid (as water) exceeding the limit or capacity	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

overflow (verb)	flow (verb)
overflow with a certain feeling	undergo menstruation
flow or run over (a limit or brim)	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