get through vs reach

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

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

As verbs, get through and reach are synonyms defined as:

Other synonyms of get through include contact, get hold of.

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

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

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

get 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

get through (verb)	reach (verb)
finish a task completely	be in or establish communication with
become clear or enter one's consciousness or emotions	to exert much effort or energy
be in or establish communication with	move forward or upward in order to touch; also in a metaphorical sense
succeed in reaching a real or abstract destination after overcoming problems	reach a point in time, or a certain state or level
spend or pass, as with boredom or in a pleasant manner; of time	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