get through vs get across

get through and get across both are verbs.

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

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

get through and get across: become clear or enter one's consciousness or emotions

Other synonyms of get through include click, come home, dawn, fall into place, penetrate, sink in.

get through (verb)	get across (verb)
finish a task completely	become clear or enter one's consciousness or emotions
become clear or enter one's consciousness or emotions	communicate successfully
be in or establish communication with	travel across or pass over
succeed in reaching a real or abstract destination after overcoming problems
spend or pass, as with boredom or in a pleasant manner; of time