link up vs identify

link up and identify both are verbs.

Word	Noun	Adjective	Verb	Adverb
link up	No	No	Yes	No
identify	No	No	Yes	No

As verbs, identify is a hyponym of link up; that is, identify is a word with a more specific, narrower meaning than link up:

Other hyponyms of link up include remember, interrelate, correlate, free-associate, have in mind, mean, think of.

link up (verb)	identify (verb)
make a logical or causal connection	recognize as being; establish the identity of someone or something
connect, fasten, or put together two or more pieces	identify as in botany or biology, for example
be or become joined or united or linked	consider to be equal or the same
	conceive of as united or associated
	consider (oneself) as similar to somebody else
	give the name or identifying characteristics of; refer to by name or some other identifying characteristic property