come up to vs greet

come up to and greet both are verbs.

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

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

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

come up to (verb)	greet (verb)
speak to someone	react to in a certain way
	express greetings upon meeting someone
	send greetings to
	be perceived by