pour vs spill

pour is not a noun while spill is a noun.

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

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

pour: cause to run
spill: pour out in drops or small quantities or as if in drops or small quantities

Other hyponyms of pour include pour forth, shed, dribble, drip, drop, transfuse, effuse, pour out, decant, pour, pour out.

pour (noun)	spill (noun)
	the act of allowing a fluid to escape
	a sudden drop from an upright position
	a channel that carries excess water over or around a dam or other obstruction
	liquid that is spilled

pour (verb)	spill (verb)
move in large numbers	reduce the pressure of wind on (a sail)
flow in a spurt	reveal information
cause to run	cause or allow (a solid substance) to flow or run out or over
pour out gradually, so as to separate out sediment	pour out in drops or small quantities or as if in drops or small quantities
supply in large amounts or quantities	cause or allow (a liquid substance) to run or flow from a container
rain heavily	flow, run or fall out and become lost