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

 

posterity

 noun
noun
BrE BrE//pɒˈsterəti//
 
; NAmE NAmE//pɑːˈsterəti//
 
[uncountable](formal)
 
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all the people who will live in the future Their music has been preserved for posterity. Posterity will remember him as a great man. It remains to be seen how posterity will judge her actions. The scene was captured for posterity by the camera of Lord Snowdon. Word Origin late Middle English: from Old French posterite, from Latin posteritas, from posterus ‘following’.
See the Oxford Advanced American Dictionary entry: posterity