pour vs spurt

pour is not a noun while spurt is a noun.

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

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

Other hyponyms of pour include gush, spirt, spout, regurgitate.

pour (noun)	spurt (noun)
	the occurrence of a sudden discharge (as of liquid)

pour (verb)	spurt (verb)
move in large numbers	wet with a spurt of liquid
flow in a spurt	move or act with a sudden increase in speed or energy
cause to run	gush forth in a sudden stream or jet
pour out gradually, so as to separate out sediment
supply in large amounts or quantities
rain heavily