spill out vs stream

spill out is not a noun while stream is a noun.

Word	Noun	Adjective	Verb	Adverb
spill out	No	No	Yes	No
stream	Yes	No	Yes	No

As verbs, stream is a hypernym of spill out; that is, stream is a word with a broader meaning than spill out:

Other hypernyms of spill out include pour, pullulate, swarm, teem.

spill out (noun)	stream (noun)
	the act of flowing or streaming; continuous progression
	a steady flow of a fluid (usually from natural causes)
	dominant course (suggestive of running water) of successive events or ideas
	a natural body of running water flowing on or under the earth
	something that resembles a flowing stream in moving continuously

spill out (verb)	stream (verb)
be disgorged	exude profusely
	flow freely and abundantly
	to extend, wave or float outward, as if in the wind
	move in large numbers
	rain heavily