retirement pension vs superannuation

retirement pension and superannuation both are nouns.

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

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

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

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

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	the property of being out of date and not current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