come through vs reach

come through is not a noun while reach is a noun.

Word	Noun	Adjective	Verb	Adverb
come through	No	No	Yes	No
reach	Yes	No	Yes	No

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

come through: succeed in reaching a real or abstract destination after overcoming problems
reach: reach a destination, either real or abstract

Other hypernyms of come through include arrive at, attain, gain, hit, make.

As verbs, reach is a hyponym of come through; that is, reach is a word with a more specific, narrower meaning than come through:

come through (noun)	reach (noun)
	the act of physically reaching or thrusting out
	an area in which something acts or operates or has power or control:
	the limit of capability
	the limits within which something can be effective

come through (verb)	reach (verb)
penetrate	be in or establish communication with
succeed in reaching a real or abstract destination after overcoming problems	to exert much effort or energy
attain success or reach a desired goal	move forward or upward in order to touch; also in a metaphorical sense
continue in existence after (an adversity, etc.)	reach a point in time, or a certain state or level
	reach a destination, either real or abstract
	reach a goal
	place into the hands or custody of
	to gain with effort
	to extend as far as