springtide vs outpouring

springtide and outpouring both are nouns.

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

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

Other hypernyms of springtide include flush, gush.

springtide (noun)	outpouring (noun)
a greater than average tide occurring during the new and full moons	a large flow
a swelling rush of anything	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