outpouring vs spurt

outpouring and spurt both are nouns.

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

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

Other hyponyms of outpouring include jet, spirt, squirt, escape, leak, leakage, outflow.

outpouring (noun)	spurt (noun)
a large flow	the occurrence of a sudden discharge (as of liquid)
the rapid and continuous delivery of linguistic communication (spoken or written)
the pouring forth of a fluid
a sudden rapid flow (as of water)
a natural flow of ground water

outpouring (verb)	spurt (verb)
	wet with a spurt of liquid
	move or act with a sudden increase in speed or energy
	gush forth in a sudden stream or jet