Definition of superannuation noun from the Oxford Advanced Learner's Dictionary

 

superannuation

 noun
noun
BrE BrE//ˌsuːpərˌænjuˈeɪʃn//
 
, also BrE//ˌsjuːpərˌænjuˈeɪʃn//
 
; NAmE NAmE//ˌsuːpərˌænjuˈeɪʃn//
 
[uncountable](especially British English)
 
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a pension that you get, usually from your employer, when you stop working when you are old and that you pay for while you are working; the money that you pay for this