come up to vs recognize

come up to and recognize both are verbs.

Word	Noun	Adjective	Verb	Adverb
come up to	No	No	Yes	No
recognize	No	No	Yes	No

As verbs, recognize is a hyponym of come up to; that is, recognize is a word with a more specific, narrower meaning than come up to:

Other hyponyms of come up to include greet, recognise, approach.

come up to (verb)	recognize (verb)
speak to someone	perceive to be the same
	be fully aware or cognizant of
	accept (someone) to be what is claimed or accept his power and authority
	express obligation, thanks, or gratitude for
	express greetings upon meeting someone
	detect with the senses
	grant credentials to
	show approval or appreciation of
	exhibit recognition for (an antigen or a substrate)