flow vs spill

flow and spill both are nouns.

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

As nouns, spill is a hyponym of flow; that is, spill is a word with a more specific, narrower meaning than flow:

Other hyponyms of flow include release, spillage, flood, outpouring, overflow.

As verbs, spill is a hyponym of flow; that is, spill is a word with a more specific, narrower meaning than flow:

flow (noun)	spill (noun)
the act of flowing or streaming; continuous progression	the act of allowing a fluid to escape
the motion characteristic of fluids (liquids or gases)	a sudden drop from an upright position
dominant course (suggestive of running water) of successive events or ideas	a channel that carries excess water over or around a dam or other obstruction
any uninterrupted stream or discharge	liquid that is spilled
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

flow (verb)	spill (verb)
undergo menstruation	reduce the pressure of wind on (a sail)
cover or swamp with water	reveal information
fall or flow in a certain way	cause or allow (a solid substance) to flow or run out or over
move along, of liquids	pour out in drops or small quantities or as if in drops or small quantities
move or progress freely as if in a stream	cause or allow (a liquid substance) to run or flow from a container
cause to flow	flow, run or fall out and become lost
be abundantly present