superannuation vs retirement pension

superannuation and retirement pension both are nouns.

Word	Noun	Adjective	Verb	Adverb
superannuation	Yes	No	No	No
retirement pension	Yes	No	No	No

As nouns, superannuation and retirement pension are synonyms defined as:

superannuation and retirement pension: a monthly payment made to someone who is retired from work

Other synonyms of superannuation include old-age pension, retirement benefit, retirement check, retirement fund.

superannuation (noun)	retirement pension (noun)
the act of discharging someone because of age (especially to cause someone to retire from service on a pension)	a monthly payment made to someone who is retired from work
the property of being out of date and not current
a monthly payment made to someone who is retired from work