pop in vs come in

pop in and come in both are verbs.

Word	Noun	Adjective	Verb	Adverb
pop in	No	No	Yes	No
come in	No	No	Yes	No

As verbs, come in is a hypernym of pop in; that is, come in is a word with a broader meaning than pop in:

Other hypernyms of pop in include enter, get in, get into, go in, go into, move into.

pop in (verb)	come in (verb)
enter briefly	take a place in a competition; often followed by an ordinal
	to insert between other elements
	be received
	to come or go into
	come into fashion; become fashionable