get through vs while away

get through and while away both are verbs.

Word	Noun	Adjective	Verb	Adverb
get through	No	No	Yes	No
while away	No	No	Yes	No

As verbs, get through and while away are synonyms defined as:

get through and while away: spend or pass, as with boredom or in a pleasant manner; of time

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