renovation vs refurbishment

renovation and refurbishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
renovation	Yes	No	No	No
refurbishment	Yes	No	No	No

As nouns, renovation and refurbishment are synonyms defined as:

renovation and refurbishment: the state of being restored to its former good condition

Other synonyms of renovation include restoration.

renovation (noun)	refurbishment (noun)
the act of improving by renewing and restoring	the state of being restored to its former good condition
the state of being restored to its former good condition