pop out vs pop

pop out is not a noun while pop is a noun.

Word	Noun	Adjective	Verb	Adverb
pop out	No	No	Yes	No
pop	Yes	Yes	Yes	Yes

As verbs, pop out and pop are synonyms defined as:

Other synonyms of pop out include bug out, bulge, bulge out, come out, protrude, start.

As verbs, pop out and pop are synonyms defined as:

Other synonyms of pop out include burst out, crop up, pop up.

pop out (noun)	pop (noun)
	music of general appeal to teenagers; a bland watered-down version of rock'n'roll with more rhythm and harmony and an emphasis on romantic love
	a sharp explosive sound as from a gunshot or drawing a cork
	a sweet drink containing carbonated water and flavoring
	an informal term for a father; probably derived from baby talk

pop out (adjective)	pop (adjective)
	(of music or art) new and of general appeal (especially among young people)

pop out (verb)	pop (verb)
come out suddenly or forcefully	burst open with a sharp, explosive sound
exit briefly	cause to burst with a loud, explosive sound
bulge outward	fire a weapon with a loud explosive noise
appear suddenly or unexpectedly; happen unexpectedly	take drugs, especially orally
	drink down entirely
	hit a pop-fly
	put or thrust suddenly and forcefully
	hit or strike
	release suddenly
	bulge outward
	make a sharp explosive noise
	appear suddenly or unexpectedly; happen unexpectedly
	cause to make a sharp explosive sound

pop out (adverb)	pop (adverb)
	like a pop or with a pop