round out vs finish out

round out and finish out both are verbs.

Word	Noun	Adjective	Verb	Adverb
round out	No	No	Yes	No
finish out	No	No	Yes	No

As verbs, round out and finish out are synonyms defined as:

round out (verb)	finish out (verb)
make bigger or better or more complete	fill out
make round
express as a round number
fill out