spurt vs outpouring

spurt and outpouring both are nouns.

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

As nouns, outpouring is a hypernym of spurt; that is, outpouring is a word with a broader meaning than spurt:

Other hypernyms of spurt include discharge, run.

spurt (noun)	outpouring (noun)
the occurrence of a sudden discharge (as of liquid)	a large flow
	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

spurt (verb)	outpouring (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